The material i'm using for chassis is acrylic having thickness of 4mm, wheel base is 15cm.I discovered it later on that this brown cover or paper whatever you call it must be removed.You will observe white chassis in the end pics.Let me tell you its the same chassis i have been using only the paper is removed.I will suggest you to remove this brown paper on chassis before starting.
1.Locate the midpoint of wheelbase and draw the line passing through it.You can also say we are now going to draw perpendicular bisectors of the wheelbase of chassis
2.Similarly, locate the midpoint of the length of chassis and draw the line passing through it.
3.The lines drawn are called the centre lines of the chassis.
4.The point of intersection of these centre lines is the Centre of Gravity(CG) of the chassis.
FIXING THE MOTOR AND REAR AXLE ON CHASSIS:
1.Fix the 15 teeth gear on motor by tightening the screw using screw-driver.
2.Now place the motor on the chassis such that the gear is aligned with the centre line.
3.We'll be fixing the motor with the help of U-clamp.For this firstly, put the clamp on the motor and mark the points for hole.
4.Using drillbit of 3mm, drill the holes and then tighten the screw properly(NOTE: Use washers also for proper fastening).As in my case their was a gap between the U-clamp and motor even after proper tightening.Double-sided tape came to my rescue and yea the gap was filled.
5.I also used a piece of chloroplast sheet under the nut of the motor for proper alignment of gear and motor on the chassis.Use glue on all sides of sheet for proper fixing.
6.Now for the rear axle.Measure the length of the axle and mark its midpoint.In my case the length was 14.8cm so i marked a point at 7.4cm using marker.
7.Measure the width of gear(say2.8cm).So its 1.4cm should be at either sides of the axle, mark these points.Place the gear properly and tigthen the screw as shown.
8.Now engage the gears of motor and axle properly and mark points of 1.5cm on the shaft away from the edges of the chassis.I have marked this point to fix the bearings at this place.
9.But for fixing the bearings, we first need to put the sleeves such that it sandwitches the bearing to prevent its lateral motion.
10.So, for the sleeves I was provided with 2 pipes.I selected the one which fitted the shaft properly so as to restrict the lateral movement.Cut the pipe into four 2.5cm pieces(sleeve).
11.Insert a sleeve on one side of the axle such that its inner edge touches the point marked in step7.
12.Insert the bearing and one more sleeve to sandwitch it.Do the same on other side of the axle as well.
13.Here I'm using a piece of chloroplast sheet to prevent the sliding of bearings on the chassis.For it,cut a 1cmx1cm of slot in a 2.5cmx2.5cm piece of chloroplast sheet using paper cutter such that only top layer is removed. Use sharp tools carefully.I got a severe cut on my index finger while making the slot.
14.Mesh the gears of motor and axle, make sure that the gear on rear axle is positioned left as shown.
15.Place the sheet under the bearing and fix it on chassis using glue on all the four sides.
16.Mark the points on the chassis next to chloroplast benches along the centre-line of bearing on both the sides.
17.Do make sure on the right side point is marked between the motor and bearings to make drilling process easy.
18.Drill 3mm hole at the points marked on the chassis.
19.Tighten the bearings(not too much)using zip ties through the holes drilled.
CONNECTING ROD FOR SUSPENSION:
1.Take 15cm aluminium rod.Cut two 4cm pieces from it using jr. hacksaw.Finish the edges using sandpaper.
2.Now on both the pieces mark a point(say A)1.1cm away from either side of the rod(say O).
3.Mark another point from A at 1cm(say B).
4.Now turn the rod at an angle of 90 and mark a point from 'O' at 3.1cm(sayC).
5.I will be drilling these holes now.Drilling will be easier if you flatten the rod a lil.
6.At point 'A' use a drillbit of 2mm for drilling hole.
7.Drill other two holes by using a drillbit of 3mm.Remove the abrasives by using sandpaper.
8.Take two 5cm copper connecting rod.Make it L-shaped at 1cm using nose-plier.Be careful as re-shaping it again will break the copper rod.
9.Insert this copper connecting rod in the 2mm hole drilled on the aluminium rod.
10.For fixing the connecting rod, mark two points at a distance of 5mm from the edges of the slot provided on the chassis.Repeat the same procedure on other side too.
11.Drill the holes marked in above step using 3mm drillbit.Fix the connecting rod using zip ties such that they are fixed with the chassis.
12.Make sure that the L-shaped bent is towards the front end of the chassis.
13.The aluminium rod must be free to move after fixing of connecting rod.
FIXING THE SUSPENSION:
1.Fix the two aluminium L-clamps on the chassis by marking the holes on the chassis and drilling them with 3mm drillbit.Tighten the screw properly.
2.Take a 3mm screw and pass it thrugh the second hole(3mm) of the connecting rod and fix it tight with the nut using screw driver.
3.Take a 2.5cm sleeve and insert it in the screw of connecting rod as shown.Follow the same procedure on the other side as well.
4.To fix the suspension, first insert a screw of 3mm on the topmost hole of the L-clamp and tighten it with nut by using nose-plier and screw-driver.After that we will push the sleeve in the screw.
5.Do repeat the same procedure on the other clamp. NOTE:If the sleeve do not fix tightly you can use washers at bith the ends to restrict its motion.
6.Now take the suspension and fix it on the screw which you have just assembled in the clamp and pipe.Make sure to keep the rotating heads upwards.
7.After this fix the suspension with the nuts on both the sides.
8.Follow same steps on the other side.
FABRICATION OF THE STEERING ARM:
1.Take 15cm long aluminium rod and mark its midpoint.Cut it by using Jr.Hacksaw.
2.Mark a point at 2.5cm from one end(say A) of the rod.Mark another point at 2mm from A.
3.Draw line on both the points marked above.Make a block of height not more than 2mm by joining both the lines.
4.Follow the same procedure on the second rod as well.
5.For cutting a slot,cut on the lines marked by tilting the Jr.Hacksaw so that it forms a V-shape.Width of slot must not exceed 2mm.
6.Place the nose-plier on the slot and press it to flatten the rod a little.It will faciliate easy bending of the rod.
7.Now using two nose-pliers hold the rod at both the ends and bend the rod at the required angle of 110.Draw the image as shown with correct angles and use it as reference for bending the rods.
8.Mark a point at a distance of 5mm from the bent area as shown.
9.We need to punch the holes on the point marked on both the rods by placing the star-screw on top of it and hammering it carefully.This is done so that holes can be drilled easily.
10.Drill the punched holes using drillbit of 3mm.
11.Insert the ball bearings in the couplers.
12.Put the smaller arm of the steering arm into the ball-bearing.If it doesnot fit tightly use some paper-tape to increase the outer diameter of the steering arm,this is what I did.
13.Take a 3mm screw and insert it in the connecting rod which is already attached with the chassis.Tighten the nut using nose-plier and screw-driver.
14.Now insert the bent rod in this screw and tighten it with nut such that the motion of bent rod is not restricted.
15.Place the wheels and tighten the screw.Do it properly as tightening much might break the coupler.
16.Apply glue in the front wheels to fix it with coupler.
17.Now fix the rear wheels also and tighten them properly by screw-driver.
18.Place the servo-motor in the slot provided on chassis smoothly as the material of chassis is brittle.Make sure that wire pass beneath the slot and servo gear is aligned with the centre-line.
FINAL STEERING CONNECTIONS:
1.I have used plastic strips as linkages to fix the steering arm and servo-arm.
2.
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Methods
get()
Fetches the list of players
- Source:
getCapability()
Returns a list of players that have a specified capability name
- Source:
getMjs()
Returns a list of MjsPlayer objects
- Source:


This is a challenge created by Wes Bos to help develop consistent coding habits over the course of 30 days. Each day has a tutorial that is less than 30 minutes. Each tutorial covers a vanilla JavaScript concept that is useful for everyday coding.
To learn more about this course and others created by Wes Bos, click here to visit his website
I graduated from a coding bootcamp in April. Since then, stress from the pandemic, engaging with human rights issues, and taking care of my 2 year old w/out daycare have derailed my study habits. With some restructuring of my time & getting help from family, I'm setting out to reestablish coding habits and restore my coding confidence as I move forward in my job search/freelancing.
I technically started this months ago, so I have a couple of the projects under my belt. My goal is to complete 1 tutorial every week day for 30 days.
October 5th, 2020 is my official end date (so I have a day or 2 of wiggle room).
By then, all 30 of the projects below should have a link and hopefully this page will be styled.


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Creates a scaling group.
Creates a scaling group or a collection of servers and load balancers that are managed by a scaling policy. To describe the group, specify the scaling group configuration, launch configuration, and optional scaling policies in the request body in JSON format.
If the request succeeds, the response body describes the created group in JSON format. The response includes an ID and links for the group.
| Parameter | Style | Type | Description |
|---|---|---|---|
| launchConfiguration | plain | object |
A launch configuration. A
launch configuration defines what to do
when a new server is created, including
information about the server image, the
flavor of the server image, and the load
balancer to which to connect. You must set
the |
| loadBalancers (Optional) | plain | array |
One or more load balancers to which to add new servers. All servers are added to these load balancers with the IP addresses of their ServiceNet network. All servers are enabled and equally weighted. Any new servers that are not connected to the ServiceNet network are not added to any load balancers. |
| port | plain | integer |
The port number of the service (on the new servers) to use for this particular load balancer. In most cases, this port number is 80. |
| loadBalancerId | plain | integer |
The ID of the load balancer to which to add new servers. |
| server | plain | object |
The attributes that Auto Scale uses to create a new server. For more information, see Create Server. The attributes that you specify for the server entity apply to all new servers in the scaling group, including the server name. |
| flavorRef | plain | string |
The flavor of the server image. Specifies the flavor ID for the server. A flavor is a resource
configuration for a server. For more
information, see Server Flavors
|
| imageRef | plain | string |
The ID of the cloud server image, after which new server images are created. |
| personality (Optional) | plain | array |
The file path and/or the content that you want to inject into a server image. For more information, see the Server Personality documentation for Rackspace Cloud Servers. |
| path | plain | string |
The path to the file that contains data that is injected into the file system of the new cloud server image. |
| contents | plain | string |
The content items that is injected into the file system of the new cloud server image. |
| args | plain | object |
The item to be configured. Must be "server" or "load balancer." Most launch configurations have both a server and a load balancer configured. |
| type | plain | string |
The type of the launch
configuration. For this release, this
parameter must be set to
|
| groupConfiguration | plain | object |
The configuration options for the scaling group. The scaling group configuration specifies the basic elements of the Auto Scale configuration. It manages how many servers can participate in the scaling group. It specifies information related to load balancers. |
| maxEntities (Optional) | plain | object |
The maximum amount of identities that are allowed in the scaling group. This number defaults to null. If this value is provided it must be set to an integer between 0 and 1000. |
| name | plain | string |
The name of the scaling group. This name does not need to be unique. |
| cooldown | plain | integer |
The cool-down period before more entities are added, in seconds. This number must be an integer between 0 and 86400 (24 hrs). |
| minEntities | plain | integer |
The minimum number of entities in the scaling group. This number must be an integer between 0 and 1000. |
| metadata (Optional) | plain | object |
Optional. Custom metadata for your group configuration. You can use the metadata parameter for customer automation, but it does not change any functionality in Auto Scale. There currently is no limitation on depth. |
| scalingPolicies | plain | array | This parameter group specifies configuration information for your scaling policies. Scaling policies specify how to modify the scaling group and its behavior. You can specify multiple policies to manage a scaling group. |
| array | plain | array |
An array of scaling policies. |
| name | plain | string |
A name for the scaling policy. This name must be unique for each scaling policy. |
| args (Optional) | plain | object |
Additional configuration
information for policies of type
"schedule." This parameter is not required
for policies of type "webhook." This
parameter must be set to either "at" or
|
| cron (Optional) | plain | string |
The recurring time when
the policy runs as a cron entry. For
example, if you set this parameter to
|
| at (Optional) | plain | string |
The time when this policy
runs. This property is mutually exclusive
with the |
| changePercent (Optional) | plain | number |
The percent change to make in the number of servers in the scaling group. If this number is positive, the number of servers will increase by the given percentage. If this parameter is set to a negative number, the number of servers decreases by the given percentage. The absolute change in the number of servers will be rounded to the nearest integer. This means that if -X% of the current number of servers translates to -0.5 or -0.25 or -0.75 servers, the actual number of servers that will be shut down is 1. If X% of the current number of servers translates to 1.2 or 1.5 or 1.7 servers, the actual number of servers that will be launched is 2. |
| cooldown | plain | number |
The cool-down period, in seconds, before this particular scaling policy can run again. The cool-down period does not affect the global scaling group cool-down. The minimum value for this parameter is 0 seconds, the maximum value is 86400 seconds (24 hrs). |
| type | plain | enum |
The type of policy that
runs for the current release, this value
can be either |
| change (Optional) | plain | integer |
The change to make in the number of servers in the scaling group. This parameter must be an integer. If the value is a positive integer, the number of servers increases. If the value is a negative integer, the number of servers decreases. |
| desiredCapacity (Optional) | plain | integer |
The desired server capacity of the scaling the group. For example, how many servers should be in the scaling group. This value must be an absolute number. For example, if this parameter is set to 10 and the executing policy with this will bring the number of servers to 10. The minimum allowed value is 0. |
| Parameter | Style | Type | Description |
|---|---|---|---|
| location | header | xsd:anyURI |
Creates an auto scaling endpoint. |
{ "launchConfiguration":{ "args":{ "loadBalancers":[ { "port":80, "loadBalancerId":237935 } ], "server":{ "name":"autoscale_server", "imageRef":"7cf5ffc3-7b20-46fd-98e4-fefa9908d7e8", "flavorRef":"performance1-2", "OS-DCF:diskConfig":"AUTO", "networks":[ { "uuid":"11111111-1111-1111-1111-111111111111" }, { "uuid":"00000000-0000-0000-0000-000000000000" } ] } }, "type":"launch_server" }, "groupConfiguration":{ "maxEntities":10, "cooldown":360, "name":"testscalinggroup", "minEntities":0 }, "scalingPolicies":[ { "cooldown":0, "name":"scale up by 1", "change":1, "type":"schedule", "args":{ "cron":"23 * * * *" } } ] }
{ "group":{ "groupConfiguration":{ "cooldown":360, "maxEntities":10, "metadata":{ }, "minEntities":0, "name":"testscalinggroup" }, "id":"48692442-2dbe-4311-955e-bc29f02ae311", "launchConfiguration":{ "args":{ "loadBalancers":[ { "loadBalancerId":237935, "port":80 } ], "server":{ "OS-DCF:diskConfig":"AUTO", "flavorRef":"performance1-2", "imageRef":"7cf5ffc3-7b20-46fd-98e4-fefa9908d7e8", "name":"autoscale_server", "networks":[ { "uuid":"11111111-1111-1111-1111-111111111111" }, { "uuid":"00000000-0000-0000-0000-000000000000" } ] } }, "type":"launch_server" }, "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/829409/groups/48692442-2dbe-4311-955e-bc29f02ae311/", "rel":"self" } ], "scalingPolicies":[ { "args":{ "cron":"23 * * * *" }, "change":1, "cooldown":0, "id":"9fa63149-c93d-4116-8069-74d68f48fadc", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/829409/groups/48692442-2dbe-4311-955e-bc29f02ae311/policies/9fa63149-c93d-4116-8069-74d68f48fadc/", "rel":"self" } ], "name":"scale up by 1", "type":"schedule" } ], "scalingPolicies_links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/829409/groups/48692442-2dbe-4311-955e-bc29f02ae311/policies/", "rel":"policies" } ], "state":{ "active":[ ], "activeCapacity":0, "desiredCapacity":0, "name":"testscalinggroup", "paused":false, "pendingCapacity":0 } } }
Lists the scaling groups that are available for a specified tenant.
{ "groups":[ { "id":"e41380ae-173c-4b40-848a-25c16d7fa83d", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/e41380ae-173c-4b40-848a-25c16d7fa83d/", "rel":"self" } ], "state":{ "active":[ ], "activeCapacity":0, "desiredCapacity":0, "paused":false, "pendingCapacity":0, "name":"testscalinggroup198547" } }, { "id":"f82bb000-f451-40c8-9dc3-6919097d2f7e", "state":{ "active":[ ], "activeCapacity":0, "desiredCapacity":0, "paused":false, "pendingCapacity":0, "name":"testscalinggroup198547" }, "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/f82bb000-f451-40c8-9dc3-6919097d2f7e/", "rel":"self" } ] } ], "groups_links":[ ] }
This operation does not require a request body.
Shows configuration details for a specified scaling group.
Details include the launch configuration and the scaling policies for the specified scaling group configuration.
The details appear in the response body in JSON format.
{ "group":{ "groupConfiguration":{ "cooldown":60, "maxEntities":0, "metadata":{ }, "minEntities":0, "name":"smallest possible launch config group" }, "state":{ "active":[ ], "activeCapacity":0, "desiredCapacity":0, "paused":false, "pendingCapacity":0, "name":"smallest possible launch config group" }, "id":"605e13f6-1452-4588-b5da-ac6bb468c5bf", "launchConfiguration":{ "args":{ "server":{ } }, "type":"launch_server" }, "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/605e13f6-1452-4588-b5da-ac6bb468c5bf/", "rel":"self" } ], "scalingPolicies":[ { "changePercent":-5.5, "cooldown":1800, "id":"eb0fe1bf-3428-4f34-afd9-a5ac36f60511", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/605e13f6-1452-4588-b5da-ac6bb468c5bf/policies/eb0fe1bf-3428-4f34-afd9-a5ac36f60511/", "rel":"self" } ], "name":"scale down by 5.5 percent", "type":"webhook" } ] } }
This operation does not require a request body.
Deletes a specified scaling group.
The scaling group must be empty. An empty group
contains no entities. If deletion is successful, no
response body is returned. If the group contains
pending or active entities, deletion fails and a 409
error message is returned. If there are pending or
active servers in the scaling group, pass
force=true
to force delete the group.
Passing force=true
immediately deletes
all active servers in the group. Pending servers are
deleted when they build and become active.
This operation does not require a request body and does not return a response body.
Gets the current state of a scaling group.
The GroupState object consists of the following properties:
paused. Specifies whether execution of scaling policies for the group is currently suspended. If this value is set to true, the group will not scale up or down. All policy execution calls will be ignored while this value is set to true..
pendingCapacity. Integer. Specifies the number of servers that are in a "building" state..
name. Specifies the name of the group.
Active. Specifies an array of active servers in the group. This array includes the serverID, as well as other data.
activeCapacity. Integer. Specifies the number of active servers in the group.
desiredCapacity. Integer. Specifies
the sum of all servers that are in
Active
and
Pending
state.
A request to create multiple policies, followed by the matching response.
Gets the current state of the specified scaling group. It describes the state of the group in terms of its current set of active entities, the number of pending entities, and the desired number of entities. The description is returned in the response body in JSON format.
{ "group":{ "paused":false, "pendingCapacity":0, "name":"testscalinggroup198547", "active":[ ], "activeCapacity":0, "desiredCapacity":0 } }
This operation does not require a request body.
Lists the configuration for a scaling group.
Lists the configuration for a specified scaling group. The configuration describes the minimum number of entities in the group, the maximum number of entities in the group, the global cool-down time for the group, and other metadata. The configuration is returned in the response body in JSON format.
{ "groupConfiguration":{ "cooldown":60, "maxEntities":0, "metadata":{ }, "minEntities":0, "name":"smallest possible group" } }
This operation does not require a request body.
Updates the configuration for the scaling group.
Changes the configuration of an existing scaling group. To change the configuration, specify the new configuration in the request body in JSON format. Configuration elements include the minimum number of entities, the maximum number of entities, the global cool-down time, and other metadata. If the update is successful, no response body is returned.
| Parameter | Style | Type | Description |
|---|---|---|---|
| maxEntities | plain | object |
The maximum amount of identities that are allowed in the scaling group. This number defaults to null. If this value is provided it must be set to an integer between 0 and 1000. |
| cooldown | plain | integer |
The cool-down period before more entities are added, in seconds. This number must be an integer between 0 and 86400 (24 hrs). |
| name | plain | string |
The name of the scaling group. This name cannot be unique. |
| minEntities | plain | integer |
The minimum number of entities in the scaling group. This number must be an integer between 0 and 1000. |
| metadata | plain | object |
Optional. Custom metadata for your group configuration. You can use the metadata parameter for customer automation, but it does not change any functionality in Auto Scale. There currently is no limitation on depth. |
{ "name":"workers", "cooldown":60, "minEntities":5, "maxEntities":100, "metadata":{ "firstkey":"this is a string", "secondkey":"1" } }
This operation does not return a response body.
Shows launch configuration details for a specified scaling group.
The details include how to create a server, from which image to create a server, which load balancers to join the server to, which networks to add the server to, and other metadata.
The details appear in the response body in JSON format.
{ "launchConfiguration":{ "type":"launch_server", "args":{ "server":{ "flavorRef":"performance1-4", "name":"webhead", "imageRef":"0d589460-f177-4b0f-81c1-8ab8903ac7d8", "OS-DCF:diskConfig":"AUTO", "metadata":{ "mykey":"myvalue" }, "personality":[ ], "networks":[ { "uuid":"11111111-1111-1111-1111-111111111111" } ] }, "loadBalancers":[ ] } } }
This operation does not require a request body.
Updates an existing launch configuration for the specified scaling group.
To change the launch configuration, specify the new configuration in the request body in JSON format. Configuration elements include how to create a server, from what image to create a server, which load balancers to join the server to, which networks to add the server to, and other metadata. If the update is successful, no response body is returned.
| Parameter | Style | Type | Description |
|---|---|---|---|
| args (Optional) | plain | object |
The item to be configured. Must be "server" or "loadbalancer." Most launch configurations have both a server and a loadbalancer configured. |
| loadBalancers (Optional) | plain | array |
One or more load balancers to which to add servers. All servers are added to these load balancers with the IP addresses of their ServiceNet network. All servers are enabled and equally weighted. Any new servers that are not connected to the ServiceNet network are not added to any load balancers. |
| port | plain | integer |
The port number of the service (on the new servers) to use for this particular load balancer. In most cases, this port number is 80. |
| loadBalancerId | plain | integer |
The ID of the load balancer to which new servers will be added. |
| server | plain | object |
The attributes that Auto Scale uses to create a new server. For more information, see Create Server. The attributes that are specified for the server entity will apply to all new servers in the scaling group, including the server name. |
| flavorRef | plain | string |
The flavor of the server
image. Specifies the flavor Id for the
server. A flavor is a resource
configuration for a server. For more
information on available flavors, see the
Server Flavors
|
| imageRef | plain | string |
The ID of the cloud server image, after which new server images will be created. |
| personality (Optional) | plain | array |
The file path and/or the content that you want to inject into a server image. For more information, see the Server Personality documentation for Rackspace Cloud Servers. |
| path | plain | string |
The path to the file that contains data that will be injected into the file system of the new cloud server image. |
| contents | plain | string |
The content items that will be injected into the file system of the new cloud server image. |
{ "type":"launch_server", "args":{ "server":{ "flavorRef":"performance1-4", "name":"webhead", "imageRef":"0d589460-f177-4b0f-81c1-8ab8903ac7d8", "OS-DCF:diskConfig":"AUTO", "metadata":{ "mykey":"myvalue" }, "personality":[ ], "networks":[ { "uuid":"11111111-1111-1111-1111-111111111111" } ] }, "loadBalancers":[ { "loadBalancerId":2200, "port":8081 } ] } }
This operation does not return a response body.
Pauses the execution of all scaling policies for the specified scaling group.
IMPORTANT: This method has not been implemented in the Auto Scale API yet and will be implemented in a future release.
This operation does not require a request body and does not return a response body.
Resumes the execution of all scaling policies for the specified scaling group.
IMPORTANT: This method has not been implemented in the Auto Scale API yet and will be implemented in a future release.
This operation does not require a request body and does not return a response body.
Lists all scaling policies that are available to the specified scaling group.
Each policy is described in terms of an ID, name, type, adjustment, cool-down time, and links. These descriptions are returned in the response body in JSON format.
{ "policies":[ { "args":{ "cron":"23 * * * *" }, "changePercent":-5.5, "cooldown":1800, "id":"5f26e16c-5fa7-4d4f-8e78-257ea711389f", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/605e13f6-1452-4588-b5da-ac6bb468c5bf/policies/5f26e16c-5fa7-4d4f-8e78-257ea711389f/", "rel":"self" } ], "name":"scale down by 5.5 percent at 11pm", "type":"schedule" }, { "args":{ "at":"2013-12-05T03:12:00Z" }, "changePercent":-5.5, "cooldown":1800, "id":"9f7c5801-6b25-4f5a-af07-4bb752e23d53", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/605e13f6-1452-4588-b5da-ac6bb468c5bf/policies/9f7c5801-6b25-4f5a-af07-4bb752e23d53/", "rel":"self" } ], "name":"scale down by 5.5 percent on the 5th", "type":"schedule" }, { "changePercent":-5.5, "cooldown":1800, "id":"eb0fe1bf-3428-4f34-afd9-a5ac36f60511", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/605e13f6-1452-4588-b5da-ac6bb468c5bf/policies/eb0fe1bf-3428-4f34-afd9-a5ac36f60511/", "rel":"self" } ], "name":"scale down by 5.5 percent", "type":"webhook" }, { "cooldown":1800, "desiredCapacity":5, "id":"2f45092a-fde7-4461-a67a-3519e0366cd6", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/605e13f6-1452-4588-b5da-ac6bb468c5bf/policies/2f45092a-fde7-4461-a67a-3519e0366cd6/", "rel":"self" } ], "name":"set group to 5 servers", "type":"webhook" }, { "change":1, "cooldown":1800, "id":"e36e6a43-2a7a-433c-918c-39fa45b75d12", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/605e13f6-1452-4588-b5da-ac6bb468c5bf/policies/e36e6a43-2a7a-433c-918c-39fa45b75d12/", "rel":"self" } ], "name":"scale up by one server", "type":"webhook" } ], "policies_links":[ ] }
This operation does not require a request body.
Creates one or more scaling policies for a specified scaling group.
To create a policy, specify it in the request body in JSON format. Each description must include a name, type, adjustment, and cool-down time.
Use the JSON response to obtain information about the newly-created policy or policies:
The response header points to the List Policies endpoint.
The response body provides an array of scaling policies.
The examples that are provided below show several methods for creating a scaling policy:
A request to create a policy based on desired capacity.
A request to create a policy based on incremental change.
A request to create a policy based on change percentage.
A request to create a policy based on change percentage scheduled daily, at a specific time of day.
A request to create a policy based on change percentage scheduled once, for a specific date and time.
A request to create multiple policies, followed by the matching response.
| Parameter | Style | Type | Description |
|---|---|---|---|
| array | plain | array |
An array of scaling policies. |
| name | plain | string |
The name of the scaling policy. The name must be unique for each scaling policy in the scaling group. |
| args (Optional) | plain | object |
Additional configuration
information for policies of type "schedule."
This parameter is not required for policies of
type "webhook." This parameter must be set to
either "at" or |
| cron (Optional) | plain | string |
The recurring time when the
policy runs as a cron entry. For example, if
you set this parameter to |
| at (Optional) | plain | string |
The time at which this policy
runs. This property is mutually exclusive with
the |
| changePercent (Optional) | plain | number |
The percentage amount change to make in the number of servers in the scaling group. If this number is positive, the number of servers increases by the specified percentage. If you set this parameter to a negative number, the number of servers decreases by the specified percentage. The absolute change in the number of servers is rounded to the nearest integer. This means that if -X% of the current number of servers translates to -0.5 or -0.25 or -0.75 servers, the actual number of servers that are shut down is 1. If X% of the current number of servers translates to 1.2 or 1.5 or 1.7 servers, the actual number of servers that are launched is 2. |
| cooldown | plain | number |
The cool-down period, in seconds, before this particular scaling policy can run again. The cool-down period does not affect the global scaling group cool-down. The minimum value for this parameter is 0 seconds, the maximum value is 86400 seconds (24 hrs). |
| type | plain | enum |
The type of policy that is
executed for the current release. This value
can be either |
| change (Optional) | plain | integer |
The change to make in the number of servers in the scaling group. This parameter must be an integer. If the value is a positive integer, the number of servers increases. If the value is a negative integer, the number of servers decreases. |
| desiredCapacity (Optional) | plain | integer |
The desired server capacity of the scaling the group. For example how many servers there should be in the scaling group. This value must be an absolute number. For example, if this parameter is set to 10, executing this policy will bring the number of servers to 10. The minimum allowed value of this parameter is 0. |
{ "policies":[ { "args":{ "at":"2013-12-05T03:12:00Z" }, "changePercent":-5.5, "cooldown":1800, "id":"9f7c5801-6b25-4f5a-af07-4bb752e23d53", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/605e13f6-1452-4588-b5da-ac6bb468c5bf/policies/9f7c5801-6b25-4f5a-af07-4bb752e23d53/", "rel":"self" } ], "name":"scale down by 5.5 percent on the 5th", "type":"schedule" }, { "cooldown":1800, "desiredCapacity":5, "id":"b0555a35-b2cb-4f0e-8743-d59e1621b980", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/605e13f6-1452-4588-b5da-ac6bb468c5bf/policies/b0555a35-b2cb-4f0e-8743-d59e1621b980/", "rel":"self" } ], "name":"set group to 5 servers", "type":"webhook" }, { "args":{ "cron":"23 * * * *" }, "changePercent":-5.5, "cooldown":1800, "id":"30707675-8e7c-4ea5-9358-c21648afcf29", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/605e13f6-1452-4588-b5da-ac6bb468c5bf/policies/30707675-8e7c-4ea5-9358-c21648afcf29/", "rel":"self" } ], "name":"scale down by 5.5 percent at 11pm", "type":"schedule" }, { "change":1, "cooldown":1800, "id":"1f3bdd08-7aae-4009-a3b7-49aa47fc0876", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/605e13f6-1452-4588-b5da-ac6bb468c5bf/policies/1f3bdd08-7aae-4009-a3b7-49aa47fc0876/", "rel":"self" } ], "name":"scale up by one server", "type":"webhook" }, { "changePercent":-5.5, "cooldown":1800, "id":"5afac18c-41e5-49d6-aba8-dec17c0d8ed7", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/605e13f6-1452-4588-b5da-ac6bb468c5bf/policies/5afac18c-41e5-49d6-aba8-dec17c0d8ed7/", "rel":"self" } ], "name":"scale down by 5.5 percent", "type":"webhook" } ] }
Shows scaling policy details.
Details include an ID, name, type, adjustment, cool-down time, and links.
The details appear in the response body in JSON format.
{ "policy":{ "args":{ "cron":"23 * * * *" }, "changePercent":-5.5, "cooldown":1800, "id":"5f26e16c-5fa7-4d4f-8e78-257ea711389f", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/605e13f6-1452-4588-b5da-ac6bb468c5bf/policies/5f26e16c-5fa7-4d4f-8e78-257ea711389f/", "rel":"self" } ], "name":"scale down by 5.5 percent at 11pm", "type":"schedule" } }
This operation does not require a request body.
Updates an existing scaling policy for the specified tenant.
To update the policy, specify the name, type, adjustment, and cool-down time for the policy in the request body in JSON format. If the change succeeds, no response body is returned.
| Parameter | Style | Type | Description |
|---|---|---|---|
| name | plain | string |
A name for the scaling policy. This name must be unique for each scaling policy. |
| args (Optional) | plain | object |
Additional configuration
information for policies of type
"schedule." This parameter is not required
for policies of type "webhook." This
parameter must be set to either "at" or
|
| cron (Optional) | plain | string |
The recurring time when
the policy runs as a cron entry. For
example, if you set this parameter to
|
| at (Optional) | plain | string |
The time at which this
policy runs. This property is mutually
exclusive with the |
| changePercent (Optional) | plain | number |
The percent change to make in the number of servers in the scaling group. If this number is positive, the number of servers will increase by the given percentage. If this parameter is set to a negative number, the number of servers decreases by the given percentage. The absolute change in the number of servers will be rounded to the nearest integer. This means that if -X% of the current number of servers translates to -0.5 or -0.25 or -0.75 servers, the actual number of servers that will be shut down is 1. If X% of the current number of servers translates to 1.2 or 1.5 or 1.7 servers, the actual number of servers that will be launched is 2. |
| cooldown | plain | number |
The cool-down period, in seconds, before this particular scaling policy can run again. The cool-down period does not affect the global scaling group cool-down. The minimum value for this parameter is 0 seconds. The maximum value is 86400 seconds (24 hrs). |
| type | plain | enum |
The type of policy that
runs for the current release. This value
can be either |
| change (Optional) | plain | integer |
The change to make in the number of servers in the scaling group. This parameter must be an integer. If the value is a positive integer, the number of servers increases. If the value is a negative integer, the number of servers decreases. |
| desiredCapacity (Optional) | plain | integer |
The desired server capacity of the scaling the group, such as how many servers should be in the scaling group. This value must be an absolute number. For example, if this parameter is set to 10, running this policy brings the number of servers to 10. The minimum allowed value of this parameter is 0. |
{ "change":1, "cooldown":1800, "name":"scale up by one server", "type":"webhook" }
This operation does not return a response body.
Deletes a specified scaling policy from the specified tenant.
If deletion is successful, no response body is returned.
This operation does not require a request body and does not return a response body.
Runs a specified scaling policy.
If the operation succeeds, a response body is returned.
This operation does not require a request body and does not return a response body.
Lists web hooks and their IDs for a specified scaling policy.
This data is returned in the response body in JSON format.
{ "webhooks":[ { "id":"152054a3-e0ab-445b-941d-9f8e360c9eed", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/605e13f6-1452-4588-b5da-ac6bb468c5bf/policies/eb0fe1bf-3428-4f34-afd9-a5ac36f60511/webhooks/152054a3-e0ab-445b-941d-9f8e360c9eed/", "rel":"self" }, { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/execute/1/0077882e9626d83ef30e1ca379c8654d86cd34df3cd49ac8da72174668315fe8/", "rel":"capability" } ], "metadata":{ "notes":"PagerDuty will fire this webhook" }, "name":"PagerDuty" }, { "id":"23037efb-53a9-4ae5-bc33-e89a56b501b6", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/605e13f6-1452-4588-b5da-ac6bb468c5bf/policies/eb0fe1bf-3428-4f34-afd9-a5ac36f60511/webhooks/23037efb-53a9-4ae5-bc33-e89a56b501b6/", "rel":"self" }, { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/execute/1/4f767340574433927a26dc747253dad643d5d13ec7b66b764dcbf719b32302b9/", "rel":"capability" } ], "metadata":{ }, "name":"Nagios" } ], "webhooks_links":[ ] }
This operation does not require a request body.
Creates one or more web hooks for the specified scaling policy.
Web hooks must have a name. If the operation succeeds, the response body contains the IDs and links to the newly created web hooks. This data is provided in the request body in JSON format.
| Parameter | Style | Type | Description |
|---|---|---|---|
| name | plain | string |
A name for the webhook for logging purposes. |
| metadata (Optional) | plain | object |
User-provided key-value metadata. Both keys and values should be strings with a maximum length of 256 characters. |
[ { "metadata":{ "notes":"PagerDuty will fire this webhook" }, "name":"PagerDuty" }, { "name":"Nagios" } ]
{ "webhooks":[ { "id":"152054a3-e0ab-445b-941d-9f8e360c9eed", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/605e13f6-1452-4588-b5da-ac6bb468c5bf/policies/eb0fe1bf-3428-4f34-afd9-a5ac36f60511/webhooks/152054a3-e0ab-445b-941d-9f8e360c9eed/", "rel":"self" }, { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/execute/1/0077882e9626d83ef30e1ca379c8654d86cd34df3cd49ac8da72174668315fe8/", "rel":"capability" } ], "metadata":{ "notes":"PagerDuty will fire this webhook" }, "name":"PagerDuty" }, { "id":"23037efb-53a9-4ae5-bc33-e89a56b501b6", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/605e13f6-1452-4588-b5da-ac6bb468c5bf/policies/eb0fe1bf-3428-4f34-afd9-a5ac36f60511/webhooks/23037efb-53a9-4ae5-bc33-e89a56b501b6/", "rel":"self" }, { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/execute/1/4f767340574433927a26dc747253dad643d5d13ec7b66b764dcbf719b32302b9/", "rel":"capability" } ], "metadata":{ }, "name":"Nagios" } ] }
Shows webhook details for a specified scaling policy.
The details appear in the response body in JSON format.
{ "webhook":{ "id":"23037efb-53a9-4ae5-bc33-e89a56b501b6", "links":[ { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/676873/groups/605e13f6-1452-4588-b5da-ac6bb468c5bf/policies/eb0fe1bf-3428-4f34-afd9-a5ac36f60511/webhooks/23037efb-53a9-4ae5-bc33-e89a56b501b6/", "rel":"self" }, { "href":"https://dfw.autoscale.api.rackspacecloud.com/v1.0/execute/1/4f767340574433927a26dc747253dad643d5d13ec7b66b764dcbf719b32302b9/", "rel":"capability" } ], "metadata":{ }, "name":"Nagios" } }
This operation does not require a request body.
Updates a webhook for a specified tenant and scaling policy.
If the specified webhook is not recognized, the change is ignored. If you submit a URL, the URL is ignored but that does not invalidate the request. If the change is successful, no response body is returned.
| Parameter | Style | Type | Description |
|---|---|---|---|
| name | plain | string |
A name for the webhook for logging purposes. |
| metadata (Optional) | plain | object |
User-provided key-value metadata. Both keys and values should be strings not exceeding 256 characters in length. |
This operation does not return a response body.
Deletes a webhook for a specified scaling policy.
If deletion succeeds, no response body is returned.
This operation does not require a request body and does not return a response body.


This instructions will guide you through the installation of Co-Design.
You can use this design framework for your own project. You should use it for any Codidact project.
The software is licensed under the terms of the MIT license, which you must follow, if you want to use it for an external project.
To include this framework in your project, you'll need to include its CSS files into your HTML files.
There two different ways to obtain a copy of this framework: You can build it from source from GitHub or you can get a pre-built version.
To build our framework from source, you'll first need to download it from GitHub. Then you can run the build processes, by running the this on the command line:
~/co-design $ npm install
~/co-design $ npm run build
~/co-design $ npm run js_build
Your CSS build will then be in /dist
, your JS build in /js
.
You can modify the configuration, by overriding the variables in the child theme file. That one is located at src/_child.scss
in the repository.
You can also use a pre-built version. However, you won't be able to change variables (such as: font, color, ...), if you choose to do so.
You can find a pre-built version of the CSS and of the JavaScript. You can link to that CDN directly in your code:
<link rel="stylesheet" href="https://unpkg.com/<EMAIL_ADDRESS>
Download the pre-built CSS Download the pre-built JavaScript
When you want to use Co-Design for a Codidact project, it should already be included and have a correct template. If you need assistance, you can always ping luap42 in Discord.
When you want to use Co-Design for an external project, we recommend you to use the following HTML template:
<!doctype html>

<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Your Co-Design page</title>
<link rel="stylesheet" href="path/to/dist/codidact.css">

Brand

Menu item 1
Menu item 2

Menu item 3
Menu item 4


Do you remember that file you kept in a corner of your desktop for all these years? Ever wondered how much precious space does it waste? Well now we can answer that question!
Do you remember that file you kept in a corner of your desktop for all these years? Ever wondered how much precious space does it waste? Well now we can answer that question!


ABOUT RIOT GAMES INC
Riot Games, Inc. is an American video game developer, publisher, and esports tournament organizer based in West Los Angeles, California. The company was founded in September 2006 by University of Southern California roommates Brandon Beck and Marc Merrill, as they sought to create a company that continuously improves on an already released game, instead of commencing development on a new one. Riot Games was majority-acquired by Chinese corporation Tencent in February 2011 and fully acquired in December 2015. As of May 2018, Riot Games operates 24 offices around the world, in which it employs 2,500 staff members.
Riot Games is best known for League of Legends, a multiplayer online battle arena game and the company's flagship product. The game was first released in October 2009 and subsequently became the game with the highest active player count by 2013. Since 2011, Riot Games also operates various esports tournaments for the game, including the League of Legends World Championship, the Championship Series, the European Championship, and the Mid-Season Invitational.
ABOUT LEAGUE OF LEGENDS
League of Legends (abbreviated LoL or League) is a 2009 multiplayer online battle arena video game developed and published by Riot Games for Microsoft Windows and macOS. Originally inspired by Defense of the Ancients, the game has followed a freemium model since its release on October 27, 2009. League of Legends is often cited as the world's largest esport, with an international competitive scene. The 2019 League of Legends World Championship had over 100 million unique viewers, peaking at a concurrent viewership of 44 million, with a minimum prize pool of US$2.5 million.
In League of Legends, players form a team of five and assume the role of a champion, characters with unique abilities, generally varying around a type of class, and battle against a team of player- or computer-controlled champions. In the main game mode, Summoner's Rift, the goal is to destroy the opposing team's Nexus, a structure that lies at the heart of their base and is protected by defensive structures.
A mobile version, League of Legends: Wild Rift, entered an open beta for the Southeast Asia region on October 27, 2020.


WITNESS LIST Transportation & Homeland Security Committee July 26, 2006 - 9:00A Interim Charge 7 ON: Burleson, Dennis Chairman (Hidalgo County Regional Mobility Authority), Mission, TX Cardoso, Olga Lead Organizer (La Union del Pueblo Enteron (LUPE)), San Juan, TX Carrisales, Antonio Farmworker (LUPE), Donna, TX Cortez, Richard Mayor of McAllen, Texas (City of McAllen, Texas), McAllen, TX Escobedo, Rita (UFW and LUPE), Mission, TX Figueroa, Luis Legislative Attorney (MALDEF Mexican American Legal Defense and Education Fund), San Antonio, TX Franz, John Mayor of Hidalgo, Texas (City of Hidalgo, Texas), Hidalgo, TX Gomez, Maria Organizer (LUPE), Pharr, TX Gonzalez Jr., Sigifredo Zapata County Sheriff (Texas Border Sheriffs' Coalition), Zapata, TX Hinojosa, Gilberto Cameron County Judge (Cameron County), Brownsville, TX Ingram, John Commissioner - District #5, City of McAllen, Texas (District 5, City of McAllen, Texas), McAllen, TX Lasseigne, John Pastor, St. John's Parish (Valley Interfaith), San Juan, TX McClung, John President (Texas Produce Association), Mission, TX McCraw, Steve Director of Homeland Security (Office of the Governor), Austin, TX Montemayor, John Captain (Hidalgo County Sheriff's Office), Edinburg, TX Olivarez, Leo Councilman, Place 4, City of Mission, Texas (Place 4, City of Mission, Texas), Mission, TX Perez, Noe (Self), Laguna Vista, TX Salinas, Norberto Mayor of Mission, Texas (City of Mission, Texas), Mission, TX Vale, Sam President/Public Policy Chair (Starr-Camargo Bridge Co./Border Trade Alliance), Rio Grande City, TX Villescas, Ruben Chief of Police (Self), Pharr, TX Yanez-Correa, Ana Executive Director (Texas Criminal Justice Coalition), Austin, TX Ybarra, Ray Racial Justice Fellow (ACLU of Texas), El Paso, TX Registering, but not testifying: On: Bersch, Alejandrina President (Border Network for Human Rights, Montana Vista Chapter), El Paso, TX Camargo, Elizabeth Prog. Coordinator (Border Network for Human Rights), El Paso, TX Carpenter, Edward Reverend (Self), San Elizario, TX Carrillo, Ramon O. (Self), San Elizario, TX Garcia, Martha (Self), San Elizario, TX Gonzalez, Porfiria (Self), El Paso, TX Herrera, Ana (Self), San Elizario, TX Martinez, Guillermo (Self), El Paso, TX Miranda, Miguel Coordinator and Promoter (Self), El Paso, TX Perez, Ricardo Former Mayor (Self), Mission, TX Prewett, Ray President (Texas Citrus Mutual), Mission, TX Rubio, Jesse (Self), San Elizario, TX


QuarticPolynomial()
The quartic polynomial regression problem for KGP to solve.
The target function is x^4 + x^3 + x^2 + x.
x^4 + x^3 + x^2 + x
See Also


Wed Apr 6, 2011
Warning: this is not a movie for angry nerds. If you ponder over the concepts of multiple dimensions and consciousness and that sort of esoteric stuff more deeply, the purist in you will start to bristle. And don’t even start to go down the road of analyzing why a movie called Source Code has nothing to do with late nights coding in C+ at your Linux box. That said, this movie is such a wild romp through quasi-temporal what-ifs that you’ll soon forget these half-baked concepts.
Source Code is basically Groundhog Day on acid, except instead of Bill Murray, we have Russel Peters. Yes, you heard me, Russel “Somebody’s-gonna-get-hurt-real-bad” Peters has an excellent cameo in this flick. But the hero leading the charge through all the deja-vu moments is aptly played by Jake Gyllenhall, whose portrayal of a desperate soldier is wonderfully tempered with a bumbling humanistic quality.
I love movies in the vein of The Butterfly Effect and Momentum, so Source Code had me at “multiple dimensions” (although, as the inventor of the Source Code emphatically iterates: It’s not time travel, it’s time re-assignment). The director’s previous effort, Moon, was also a mind-bending look at an individual isolated by bizarre circumstances and trying to find out the truth of it all. I’d say he injected more adrenaline into this effort and has come up with a snappy and engaging thriller that is a must-see. Oh, and I loved the ending.
5⁄5 stars


--- layout: page title: Protocols ---
Links to open protocols developed in the lab:
All protocols developed by Josh Quick.
We are now starting to host protocols on the excellent protocols.io site.
Older links to Google Docs.


Recipe 16.5. Composing FunctionsCredit: Scott David Daniels ProblemYou need to construct a new function by composing existing functions (i.e., each call of the new function must call one existing function on its arguments, then another on the result of the first one). SolutionComposition is a fundamental operation between functions and yields a new function as a result. The new function must call one existing function on its arguments, then another on the result of the first one. For example, a function that, given a string, returns a copy that is lowercase and does not have leading and trailing blanks, is the composition of the existing string.lower and string.strip functions. (In this case, it does not matter in which order the two existing functions are applied, but generally, it could be important.) A closure (a nested function returned from another function) is often the best Pythonic approach to constructing new functions: def compose(f, g, *args_for_f, **kwargs_for_f): ''' compose functions. compose(f, g, x)(y) = f(g(y), x)) ''' def fg(*args_for_g, **kwargs_for_g): return f(g(*args_for_g, **kwargs_for_g), *args_for_f, **kwargs_for_f) return fg def mcompose(f, g, *args_for_f, **kwargs_for_f): ''' compose functions. mcompose(f, g, x)(y) = f(*g(y), x)) ''' def fg(*args_for_g, **kwargs_for_g): mid = g(*args_for_g, **kwargs_for_g) if not isinstance(mid, tuple): mid = (mid,) return f(*(mid+args_for_f), **kwargs_for_f) return fg DiscussionThe closures in this recipe show two styles of function composition. I separated mcompose and compose because I think of the two possible forms of function composition as being quite different, in mathematical terms. In practical terms, the difference shows only when the second function being composed, g, returns a tuple. The closure returned by compose passes the result of g as f's first argument anyway, while the closure returned by mcompose treats it as a tuple of arguments to pass along. Any extra arguments provided to either compose or mcompose are treated as extra arguments for f (there is no standard functional behavior to follow here): compose(f, g, x)(y) = f(g(y), x) mcompose(f, g, x)(y) = f(*g(y), x) As in currying (see Recipe 16.4), this recipe's functions are for constructing functions from other functions. Your goal in so doing should be clarity, since no efficiency is gained by using these functional forms. Here's a quick example for interactive use: parts = compose(' '.join, dir) When called on a module object, the callable we just bound to name parts gives you an easy-to-view string that lists the module's contents. See AlsoRecipe 16.4 for an example of "curry"ing (i.e., associating parameters with partially evaluated functions). |


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Graphical user interface
These days almost no programming task is complete until it is packaged in a graphical user interface (GUI).
Let's add a GUI to your centigrade and fahrenheit verbs.
There are many steps in building a form and an application. The exact steps you should follow are contained in the series of indented, bulleted items. General discussion and background information is provided in text between these bulleted items.
Run your cf.ijs script and make sure that centigrade and fahrenheit work.
The first step in creating a GUI is to create a form definition. A form definition is stored in a script file just as are all your other definitions.
Create a new script file, save it as a permanent file in the user directory, and start the form editor. The form editor is covered in more detail in the J Online Documentation available on the help menu and you should refer to that if you have problems with the following steps, or want more information at this time.
- create a new script file with File|New ijs
- save it in the user directory as cfgui.ijs with File|Save As...
- start the form editor with Edit|Form Editor
You should now have the Form Edit dialog box on the screen.
- type cfgui for your form name
- select the empty form item in the listbox
- press OK to close the dialog
You should now have two new windows on the screen, one in the upper left corner and one in the center of the screen that look something like:
The small form in the corner is the new form you are editing. The Design dialog allows you to customize the form and is in the middle of the screen. The script file cfgui.ijs has had text added to it that defines the form.
Create a static control in your form with the text centigrade. A static control is used to label other controls.
- press the New... button in the Design dialog
- in the New Control dialog select static from the listbox
- type s1 into the Id edit box
- type Centigrade: into the Caption edit box
- press OK
New controls are created in the upper left corner of the form. You can drag a control with the mouse. To drag a control, point at it with the mouse, hold down the left mouse button and move it.
- drag the centigrade label down and to the right a bit
Create an edit control with an id of cid for the centigrade value. The id is very important as it is used as the name of the noun used for the control as well as being used in commands to indicate which control they affect.
- press the New... button
- select a class of edit
- type in cid as the control id
- press OK
- drag the cid edit control to the right of the label control
Create a static control with the text Fahrenheit: and an edit control with an id of fid.
- repeat steps similar to the above to create a fahrenheit static label and a fid edit control
Experiment a bit with moving the controls around. Grab edges or corners to resize them. If you make a mistake you can select a control with the mouse and press the Delete key to delete it and then recreate it.
Your form should now look something like the following:
The form design is finished. Let's exit the form editor and try running the form.
- press OK in the Design dialog
The form definition is now in the cfgui.ijs script. Let's take a look at what the form editor put into the script. The numbers giving screen coordinate will be different, but your script should look something like:
NB. base form
CFGUI=: 0 : 0
pc cfgui;
xywh 12 18 40 10;cc s1 static;cn "Centigrade:";
xywh 56 16 40 14;cc cid edit ;
xywh 12 40 40 10;cc s2 static;cn "Fahrenheit:";
xywh 56 36 40 14;cc fid edit;
pas 6 6;pcenter;
rem form end;
)
cfgui_run=: 3 : 0
wd CFGUI
NB. initialize form here
wd 'pshow;'
)
cfgui_close=: 3 : 0
wd'pclose'
)
All interactions with forms are done with the wd (Window Driver) verb. The wd argument is always a string that starts with a command. A string can contain multiple commands separated by semicolons.
The noun CFGUI is defined by the conjunction : in a manner similar to how verbs are defined. The left argument of 0 creates a noun. It is defined as the lines of characters up to the line which contains only the ). It contains the commands that will create the form. Don't worry about the details now, but most of it should make some sense. Commands are followed by parameters and multiple commands on a line are separated by ;. The pc command is a parent create (a form is referred to as a parent). The next line has an xywh command that sets a rectangular area on the form and is followed by a cc command (create child) that creates one of the controls you put on the form.
After the definition of CFGUI you will see that the editor has created a verb called cfgui_run. This verb ignores its argument. It executes the wd verb with CFGUI as an argument. This creates the form, but doesn't show it. The final wd with the argument 'pshow;' will show the parent (form).
At this point the cfgui.ijs script has not been run so the definitions are just text in the script file and have not been defined. After you run the script you are ready to run your application.
- run the cfgui.ijs script with Run|Window
- in the ijx window: cfgui_run 0
When you execute cfgui_run 0 you should see your form in the middle of the screen. Typing into the controls and pressing Enter has no effect because you have no code connected to the events yet.
You can close the form manually by executing the wd command reset that closes all forms.
- in the ijx window: wd 'reset'
When you type a value in the centigrade edit control and press Enter you cause an event. An event is identified by the form and the control in which it occurs and the type of the event. An Enter in an edit control is a button event (pressing enter in an edit field is analogous to pressing a button control). So, the event of interest here is for form cfgui, control cid, and is a button event.
When an event occurs, a verb called the event handler is executed. The name of the verb that is executed is determined by the event. The name of an event handler is made up of three parts: formid_controlid_event. So, the event handler of interest has the name cfgui_cid_button.
The event handler cfgui_cid_button should convert the value from the cid edit control to Fahrenheit and then display that result in the fid edit control.
The form editor can automatically create a skeleton of this event handler for you. In the form editor, hold down the Ctrl key and click a control, and you will be switched to editing in the script at the definition of the verb that handles the event for that control.
You closed the form editor, so the first thing is to restart the form editor. Select the cfgui.ijs script and start the form editor with Edit|Form Editor.
- select cfgui.ijs (titlebar highlighted)
- start form editor with Edit|Form Editor
Your form should again appear open for editing in the corner of your screen.
- hold down the Ctrl key and click the cid control
You should be positioned at the skeleton definition of cfgui_cid_button in the cfgui.ijs script. You need to define that verb. When the event handler is executed the noun cid will automatically have the value of the contents of the edit field. It will be a string and you need to convert that to a number with the ". primitive.
t =. 0 ". cid
The next thing is to convert that centigrade value to Fahrenheit.
t =. fahrenheit t
The noun t is the number you want to display in the fid edit control. The number must be converted to a string before it can be shown in an edit field. Use ": (format) for this.
t =. ": t
Finally, write the text string to the fid edit field.
wd 'set fid ' , t
The wd argument has a command of set, the id of the control to set, and t contains the data to set.
Add these sentences to the cfgui_cid_button definition in the cfgui.ijs script.
cfgui_cid_button=: 3 : 0
t =. 0 ". cid
t =. fahrenheit t
t =. ": t
wd 'set fid ', t
)
Be careful to type this correctly into your script.
You return to the form editor by holding down the Ctrl key and clicking the script window.
- add the sentences to the definition of cfgui_cid_button
- hold the Ctrl key and click the script to return to the form editor
- press OK in the Design dialog
At this point the cfgui.ijs script has not been run so the changes are just text in the script file.
- run the script with Run|Window
- in the ijx window run the application: cfgui_run 0
You should see your form in the middle of the screen. Type a number into the centigrade field and press Enter. The Fahrenheit value should display in its field.
If you type into the Fahrenheit field and press Enter nothing happens. This is because you have not provided a handler for that event. If an event handler verb is not defined, the event is ignored. Let's define the event handler for Enter in the Fahrenheit field now. Start the form editor and hold down the Ctrl key and click the fid control to get to the definition of the verb for that event. The definition for cfgui_fid_button is similar to that of cfgui_cid_button.
cfgui_fid_button=: 3 : 0
t =. 0 ". fid
t =. centigrade t
wd'set cid ', ": t
)
- select cfgui.ijs (titlebar highlighted)
- start the form editor with Edit|Form Editor
- hold down the Ctrl key and click the fid control
- add the cfgui_fid_button definition to the script
- hold the Ctrl key and click the script to return to the form editor
- press OK in the Design dialog
- run the script with Run|Window
- in the ijx window: cfgui_run 0
Now when you type a value in the Fahrenheit field and press Enter it will be converted and display in the centigrade field.
The form editor automatically added a cfgui_close verb to handle the event when you click the close box in the upper right corner of the form. The wd command pclose (parent close) closes the form. But as practice you should add a button control with caption Close that will also close the form.
- in the ijx window: wd 'reset'
- start the form editor with Edit|Form Editor
- press the New... button
- select a class of button
- type close as the control id
- type Close in the caption field
- press OK
- drag the Close button to the right side of the form
- hold down the Ctrl key and click the Close button
- add the wd 'pclose' sentence to the definition
- hold the Ctrl key and click the script to return to the form editor
- press OK in the Design dialog
- run the script with Run|Window
- in the ijx window: cfgui_run 0
When you tire of doing conversions you can press the Close button to close your form.
Congratulations! you have written a GUI application in J. It is simple and has rough edges, but you are over the high hurdles.
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The world needed a hero -- it got a hedgehog. Powered with incredible speed, Sonic embraces his new home on Earth!


Welcome to the Planet Facts Quiz. You have 90 seconds to answer all the questions
If you get an answer incorrect 5 seconds will be deducted from the timer
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WITNESS LIST Corrections Committee January 29, 1997-8:00A Budget Overview by CJ Policy On: Fabelo, Tony (CJ Policy) Budget Overview on CJ On: Scott, Wayne (Tx. Dept. of CJ) Budget Overview on TJPC For: Pace, Don (TJPC) On: Logan, Robert J. (TJPC) Wright, Vickie L. (TJPC) Governor's Budget On: Alcantra, Andres (Governor's Budget) Baldwin, Ed (Governor's Budget) Craymer, Dale (Governor's Budget) Fordyce, Fred (Governor's Budget) Hokins, Albert (Governor's Budget) Ingram, Cecile (Governor's Budget) Kerker, Mike (Governor's Budget) LeBas, James (Governor's Budget) Livingston, Brad (Governor's Budget) Long, Rebecca (Governor's Budget) Merjanian, Ara (Governor's Budget) Wilson, Brian (Governor's Budget) Texas Youth Commission On: Robinson, Steve (Texas Youth Commission)


Work Day Scheduler
A simple calendar app for scheduling your work day
9:00 am
10:00 am
11:00 am
12:00 pm
1:00 pm
2:00 pm
3:00 pm
4:00 pm


Find a bipolar colormap, linear in grayscale, close to a template map.
Contents
Linearity in gray is important for a colormap to look reasonable when printed in grayscale ("black and white"), but note that precise linearity depends on the particular (non-unique) choice for conversion from RGB values to grayscale brightness/luminance, which would ideally be (printing-) device-dependent in this context, and using ICC color profiles, etc. In practice, we use a simpler conversion, like rgb2gray, (see code comments in colormap_optimization for further details).
We explore a range of template colormaps, but note that others could be better still... In particular, a colormap "dusk" has recently been added to real2rgb (see below), which I have not had time to investigate... Another area for future work would be a CIELAB-based investigation, see:
http://www.mathworks.com/matlabcentral/fileexchange/11037-lab-color-scale
http://en.wikipedia.org/wiki/Lab_color_space
CMRmap from Carey Rappaport
http://www.mathworks.com/matlabcentral/fileexchange/2662
cmr = [ 0 0 0 0.1500 0.1500 0.5000 0.3000 0.1500 0.7500 0.6000 0.2000 0.5000 1.0000 0.2500 0.1500 0.9000 0.5000 0 0.9000 0.7500 0.1000 0.9000 0.9000 0.5000 1.0000 1.0000 1.0000 ]; cmr = colormap_optimization(cmr); display(cmr) colormap_visualization(cmr, 1)
Optimization terminated. cmr = 0.0666 0.1311 0.0244 0.1577 0.1651 0.5028 0.3260 0.2011 0.7595 0.6313 0.2616 0.5115 0.5000 0.5000 0.5000 0.9233 0.5459 0.0086 0.8843 0.7192 0.0943 0.8627 0.8266 0.4863 0.9334 0.8689 0.9756
This is nice, but I would argue it is perceptually asymmetric in that there is a relatively smooth transition in the positive half, while the negative half has a more distinct mauve band around -0.2 to -0.3.
Thermal from Oliver Woodford's real2rgb
http://www.mathworks.com/matlabcentral/fileexchange/23342
therm = thermal(inf); display(therm) therm = colormap_optimization(therm); display(therm) colormap_visualization(therm, 1)
therm = 0 0 0 0.3000 0 0.7000 1.0000 0.2000 0 1.0000 1.0000 0 1.0000 1.0000 1.0000 Optimization terminated. therm = 0.0666 0.1311 0.0244 0.3886 0.1743 0.7325 0.5000 0.5000 0.5000 0.8699 0.7441 0 0.9334 0.8689 0.9756
I think this is a really nice bipolar colormap. My only minor quibble is that the off-white and off-black ends are not very appealing (to me). Note that they are pure white and pure black in Oliver's original thermal scheme, but I don't like that, since I want hardcopy to be distinguished from any black lines or text labels and from a white background.
Based on recommendations in Brewer (1996), but with gray central color
http://www.ingentaconnect.com/content/maney/caj/1996/00000033/00000002/art00002
brew1 = [ 0.2500 0 0.3333 % purple 0.5000 0.5000 0.5000 % grey 1.0000 1.0000 0.1667 % yellow ]; brew1 = colormap_optimization(brew1); display(brew1) colormap_visualization(brew1, 1)
Optimization terminated. brew1 = 0.2157 0 0.3207 0.5000 0.5000 0.5000 0.9944 0.9891 0.1647
Although academically well-motivated, I find the single-color transitions away from the origin don't seem to make as good use of color to aid visualisation compared to some of the other maps here.
Based on my adaption of Brewer's (1996) recommendations
with a neutral central colour, and two colours on each side, which I feel better discriminates between values within each of the two halves. Brewer (1996) considers issues such as colorblindness, etc. She recommends (separately) blue-red and purple-yellow schemes (but not blue-purple or red-yellow). The following seems like a reasonable compromise given that Brewer's table 2 shows no ideal paths through four colors (only a few ideal color-pairs, which sadly cannot be linked up).
brew2 = [ 0.2500 0 0.3333 % purple 0.0000 0.2500 1.0000 % blue 0.5000 0.5000 0.5000 % grey 1.0000 0.2500 0.3333 % red 1.0000 1.0000 0.1667 % yellow ]; brew2 = colormap_optimization(brew2); display(brew2) brew2fine = colormap_visualization(brew2, 1);
Optimization terminated. brew2 = 0.2157 0 0.3207 0.0291 0.3072 1.0000 0.5000 0.5000 0.5000 1.0000 0.6035 0.3992 0.9944 0.9891 0.1647
I am probably biased, but I think the two-color transitions here are helpful, and there is reasonable (though not perfect) perceptual symmetry between the orange-yellow and blue-purple transitions (if anything, the purple transitions a little too sharply near the end, around -0.95). It could undoubtedly be improved further, but seems good enough to me...
Check linearity in grayscale luminance of raw and interpolated maps
colormap_visualization(brew2, 2) colormap_visualization(brew2fine, 2)
See also: colormap_visualization, colormap_optimization, bipolar
Example: map = bipolar(m, 0.5); % (gives the optimized brew2 that we get here)
Copyright 2009 Ged Ridgway at gmail com


A resume is a text file that is held on CIX Forums that holds any details that you want to share with other users of the CIX system. For instance you may wish to include your address and telephone number, a career summary or just a few thoughts.
To create or edit your resume, select the Edit/Create My Resume command from the CIX Forums Menu. Once created and posted to CIX Forums any other user of the system can read this file. Similarly you can retrieve any other user's resume by selecting Show Resume from the message menu.


--- layout: default title: Home --- Hi! I'm Bijay Gurung, a Machine Learning Engineer and writer. I love reading, writing and learning. I'm interested in Artificial Intelligence, technology in general and lifey-things (a vague term that means nothing and everything).


{% extends "messages/email/applicant_base.html" %}
{% block content %}
A new contract has been added to your Project:
Title: {{ source.title }}
Link: {{ request.scheme }}://{{ request.get_host }}{{ source.get_absolute_url }}
{% if contract.is_signed %}
This contract has already been signed and there is no action for you to take.
{% else %}
Please review the contract and sign it before reuploading it to your Project page for the {{ ORG_SHORT_NAME }} Team to approve.
{% endif %}
{% endblock %}


Leap JavaScript/WebSocket Examples
Simple canvas mouse tracking example
Breakout-style game with motion paddle


Manan Patel
Home
About
Skills
Work
Games
Contact
My Location is
Hamilton
,
And My other working locations are as follows:
Also User can add their location and verify if they can work there.
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About Me
I am a lifelong student and entrepreneur. Technology is my passion. I am always interested in getting involved with new ventures and advising young startups. I have worked in a number of different capacities on many different software projects, as both a contractor and a stakeholder, so I understand multiple different perspectives when working on a team. I've worked for the past four years as an Independent Software Developer and New Venture Consultant.
Software Engineering
As a Software Architect, Full-stack Web developer, and Entrepreneur, I find that being comfortable in a wide variety of languages, frameworks, databases, tools, paradigms, architectures, and design patterns allows me to always have (if not The Right Tool™) at least an appropriate tool available for the job, even when tackling a type of problem I've never before encountered.
To that end, I make a dedicated effort to learn and use a diverse set of tools, technologies, patterns, and paradigms. And when a problem calls for more than one of them, even within the same category, I'm happy to oblige. Here are some of those that I use more frequently:
Languages and Frameworks
-
JavaScript:
Node
,React
,Flux
,Angular
,Backbone
- Elixir:
Phoenix
- Ruby:
Rails
,Sinatra
- HTML5:
Jade
,Handlebars
,Emmet
- CSS:
SCSS
,SASS
- Python
Databases
- Relational and quasi-SQL DBs:
Postgres
,MySQL
,Cassandra
- Document and BigTable DBs:
MongoDB
,CouchDB
,HBase
- Cache and In-Memory DBs:
Redis
,VoltDB
,Couchbase
- Graph Databases:
Neo4j
Tools
- Build Tools:
Grunt
,Gulp
,Webpack
,Browserify
- Utilities:
Git
,Github
,SublimeGit
,GitFLow
,NPM
,Bower
,Homebrew
- Deploy Tools:
Amazon Web Services
,Heroku
Education
I was born and raised in the US and graduated from the University of California, Santa Barbara with a degree in Philosophy and Technology Management, focusing on New Venture Creation. I am self-educated, yet classically trained in Computer Science. As an early adopter of online "MOOCs," I taught myself CS and software engineering by taking online courses from universities like MIT, UC Berkeley, Stanford, and Georgia Tech, through platforms like edX, Udacity, and Coursera.
Contact
Email<EMAIL_ADDRESS>Skype: tyler.kresch
LinkedIn: https://linkedin.com/in/tylerkresch


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Contextual classes can be used to color table rows or table cells. The classes that can be used are: .danger, .success,.important, .active,and .danger.


I am motivated by new challenges and tasks and have consistent track record of excellent performance. I love to be creative and innovative. I like to work in projects, which are challenging and have scope for learning to hone my expertise.
Aggr.: 72%
I like travelling and adventure. I like playing all kinds of outdoor sports
When forced indoors, I follow a number of sci-fi and fantasy genre movies and television shows. I like reading good books. I spend a large amount of my free time exploring the latest technology advancements in QA Automation and web development world.


The MethodParameters
attribute is a variable-length attribute in the attributes
table of a method_info
structure.
A MethodParameters
attribute records information about the formal parameters of a method, such as their names.
There may be at most one MethodParameters
attribute in the attributes
table of a method_info
structure.
The MethodParameters
attribute has the following format:
MethodParameters_attribute { u2 attribute_name_index; u4 attribute_length; u1 parameters_count; { u2 name_index; u2 access_flags; } parameters[parameters_count]; }
The items of the MethodParameters_attribute
structure are as follows:
attribute_name_index
: The value of the attribute_name_index
item must be a valid index into the constant_pool
table.
The constant_pool
entry at that index must be a CONSTANT_Utf8_info
structure representing the string "MethodParameters".
attribute_length
: The value of the attribute_length
item indicates the length of the attribute, excluding the initial six bytes.
parameters_count
: The value of the parameters_count
item indicates the number of parameter descriptors in the method descriptor referenced by the descriptor_index
of the attribute's enclosing method_info
structure.
This is not a constraint which a Java Virtual Machine implementation must enforce during format checking.
The task of matching parameter descriptors in a method descriptor against the items in the parameters
array below is done by the reflection libraries of the Java SE platform.
parameters[]
:
Each entry in the parameters
array contains the following pair of items:
name_index
: The value of the name_index
item must either be zero or a valid index into the constant_pool
table.
If the value of the name_index
item is zero, then this parameters
element indicates a formal parameter with no name.
If the value of the name_index
item is nonzero, the constant_pool
entry at that index must be a CONSTANT_Utf8_info
structure representing a valid unqualified name denoting a formal parameter.
access_flags
: The value of the access_flags
item is as follows:
0x0010
(ACC_FINAL
): Indicates that the formal parameter was declared final
.
0x1000
(ACC_SYNTHETIC
): Indicates that the formal parameter was not explicitly or implicitly declared in source code, according to the specification of the language in which the source code was written. (The formal parameter is an implementation artifact of the compiler which produced this class file.)
0x8000
(ACC_MANDATED
): Indicates that the formal parameter was implicitly declared in source code, according to the specification of the language in which the source code was written. (The formal parameter is mandated by a language specification, so all compilers for the language must emit it.)
-parameters
: Stores formal parameter names of constructors and methods in the generated class file so that the method java.lang.reflect.Executable.getParameters
from the Reflection API can retrieve them.
javac -parameters Main.java
public class HelloWorld { public void test(String name, final int age) { // } }
constant_pool_count='0017' (23) constant_pool ... ... |013| CONSTANT_Utf8 {Value='name', HexCode='0100046E616D65'} |014| CONSTANT_Utf8 {Value='Ljava/lang/String;', HexCode='0100124C6A6176612F6C616E672F537472696E673B'} |015| CONSTANT_Utf8 {Value='age', HexCode='010003616765'} |016| CONSTANT_Utf8 {Value='I', HexCode='01000149'} |017| CONSTANT_Utf8 {Value='MethodParameters', HexCode='0100104D6574686F64506172616D6574657273'} ... ... attributes_count='0002' (2) attributes --->|001| Code: ... ... --->|002| MethodParameters: HexCode:<PHONE_NUMBER>09 02 000D0000 000F0010 attribute_name_index='0011' (#17) attribute_length='00000009' (9) parameters_count='02' (2) parameters[0] { name_index='000D' (#13:name) access_flags='0000' () } parameters[1] { name_index='000F' (#15:age) access_flags='0010' (ACC_FINAL) }


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You can see the Video.js Npaw plugin in action below. Look at the source of this page to see how to use it with your videos.
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I teach the teachers. I work in higher ed IT where I do faculty development. I train them in best ways to use technology in their courses and instructional design.
I run trainings, produce instructional media, build blended courses and support elearning applications. I also do learning experience analytics, user experience testing, knowledge management and web development. That's my 9 to 5...
Meanwhile, on my 5 to 9, I'm the teacher. I lead a grad course on computational skills, introducing journalism students to computer science and data science. My students use data analysis in their reporting and produce interactive visualizations for the web.


GridRow
ui.grid.cellNav
GridRow settings for cellNav feature, these are available to be set only internally (for example, by other features)
Enable focus on a cell within this row. If set to false then no cells
in this row can be focused - group header rows as an example would set this to false.
Defaults to true


Team List:
{{team.$id}}
( Capacity status: {{team.total}} / {{team.size}} ) There are {{team.same}} matched aims
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April 2015 - Tracking the most popular programming languages, databases and software development tools in whoishiring discussion threads.
It's no joke, April shattered the record for most postings, with, as of this analysis, 729 first level comments. It didn't hurt that this was the first non-weekend, non-holiday for whorishiring since December.
So, with the numbers up across the board, it's becoming clear that this chart needs some TLC to improve smoothing and provide a clearer window into the technology trends powering today's software development. But, for now, it is still possible to find some interesting stories in the data.
Starting off, we see Javascript and Python resume their battle for the top spot after being surpassed last month by the non-technical term, "remote". Javascript picks up its first win of the year after dominating in 2014 with 8 wins in 12 months.
There are 2 new entrants into the Top 10, AWS and "Full Stack". It appears the reports of the death of the full stack developer may be a little premature. Or, at least those looking for them didn't read the memo.
Looking at hot technologies with strong Year over Year growth, both Microservices and the React Javascript framework appear for the 2nd month in a row at or near the top of the Rising list.
In the falling list, Perl and "statistics" both make their 2nd straight appearance. Perl is not surprising as it continues to mature and be replaced, but statistics/Data Science/Big Data were so hot last year, so it's curious to see that appear hear.
Compare JavaScript, Python, Ruby and Java
Compare C++, Scala, Clojure and Go
Not much change with the big 4 (JavaScript, Ruby, Python and Java), but Scala just tied C++ for #5 with a huge jump. Let's see if can maintain that next month.
Compare Rails, node.js, PHP and Django
After threatening last year, node.js has fallen off the Rails pace over the past 6 months with Rails maintaining a healthy margin this month. PHP is still hanging in there, but a very flat curve for it.
Compare AngularJS, Backbone, Ember and React
I though AngularJS had a wild ride to the top, but check out that growth curve on React. Having spent the majority of my development career working with Javascript except for the past 10 months, it's probably a good thing to watch this play out for a bit longer between these frameworks. Or, I'll just remain on the sideline and stick with server-side rendering with a nice UI library for progressive enhancement.
Compare Postgresql, MySQL and SQL Server
It took much longer than I expected, based on my impression of its adoption, but Postgresql has picked up a consistent lead over MySQL now, with a higher mention count each thread this year.
Compare Mongodb, Cassandra, Riak and CouchDB
| Tech | Rank | Last Month | Change | Last Year | Change |
|---|---|---|---|---|---|
| JavaScript | 1 | 3 | +2 | 1 | 0 |
| Python | 2 | 2 | 0 | 2 | 0 |
| Remote | 3 | 1 | -2 | 4 | +1 |
| iOS | 4 | 4 | 0 | 3 | -1 |
| Ruby | 5 | 5 | 0 | 5 | 0 |
| Android | 6 | 6 | 0 | 6 | 0 |
| AngularJS | 7 | 8 | +1 | 10 | +3 |
| Rails | 8 | 7 | -1 | 7 | -1 |
| Full Stack | 9 | 11 | +2 | 25 | +16 |
| AWS | 10 | 12 | +2 | 15 | +5 |
| Java | 11 | 9 | -2 | 8 | -3 |
| node.js | 12 | 13 | +1 | 9 | -3 |
| passionate | 13 | 10 | -3 | 17 | +4 |
| DevOps | 14 | 17 | +3 | 23 | +9 |
| Postgresql | 15 | 15 | 0 | 18 | +3 |
| api | 16 | 20 | +4 | 28 | +12 |
| Front End | 17 | 19 | +2 | 32 | +15 |
| Machine Learning | 18 | 18 | 0 | 24 | +6 |
| Scala | 19 | 27 | +8 | 37 | +18 |
| Redis | 20 | 29 | +9 | 20 | 0 |
| Tech | Mentions | Rank | Last Year Mentions | Last Year Rank | Change |
|---|---|---|---|---|---|
| Microservices | 10 | 67 | 0 | 171 | +104 |
| Erlang | 10 | 64 | 1 | 156 | +92 |
| React | 38 | 21 | 6 | 71 | +50 |
| Storm | 5 | 87 | 2 | 123 | +36 |
| Haskell | 10 | 63 | 3 | 99 | +36 |
| SQL Server | 11 | 62 | 3 | 97 | +35 |
| CouchDB | 5 | 89 | 2 | 124 | +35 |
| Akka | 5 | 92 | 2 | 120 | +28 |
| Ansible | 15 | 52 | 5 | 80 | +28 |
| Back End | 16 | 50 | 5 | 75 | +25 |
| Tech | Mentions | Rank | Last Year Mentions | Last Year Rank | Change |
|---|---|---|---|---|---|
| Perl | 3 | 114 | 6 | 65 | -49 |
| Data Mining | 4 | 108 | 6 | 70 | -38 |
| NLP | 5 | 93 | 9 | 56 | -37 |
| Vagrant | 4 | 105 | 5 | 73 | -32 |
| statistics | 7 | 77 | 12 | 47 | -30 |
| LAMP | 6 | 82 | 11 | 52 | -30 |
| Objective-C | 10 | 70 | 15 | 41 | -29 |
| linux | 33 | 33 | 36 | 13 | -20 |
| Git | 26 | 42 | 29 | 22 | -20 |
| Sass | 8 | 76 | 8 | 59 | -17 |


|
TexiScript
1.0.0
A tool that can generate textures using a simple scripting language.
|
Public Member Functions | |
| double | r () |
| double | r (double max) |
| double | r (double min, double max) |
| int | i (int max) |
| int | i (int min, int max) |
| boolean | chance (double $chance) |
| int | sign () |
| int | sign (int num) |
| double | sign (double num) |
| < T > T | item (T[] items) |
| < T > T | item (List< T > items) |
Random generator interface with some usefull functions.
Definition at line 6 of file RandomGenerator.java.
| boolean cz.zdepav.school.texiscript.utils.RandomGenerator.chance | ( | double | $chance | ) |
Returns true with the given probability.
| $chance | Probability to return true, between 0 and 1. |
Implemented in cz.zdepav.school.texiscript.utils.Rand, and cz.zdepav.school.texiscript.utils.SeededPositionedRandom.
| int cz.zdepav.school.texiscript.utils.RandomGenerator.i | ( | int | max | ) |
Returns random integer value between 0 (inclusive) and max (exclusive).
| max | Max value (exclusive). |
Implemented in cz.zdepav.school.texiscript.utils.SeededPositionedRandom, and cz.zdepav.school.texiscript.utils.Rand.
| int cz.zdepav.school.texiscript.utils.RandomGenerator.i | ( | int | min, |
| int | max | ||
| ) |
Returns random integer value between min (inclusive) and max (exclusive).
| min | Min value (inclusive). |
| max | Max value (exclusive). |
Implemented in cz.zdepav.school.texiscript.utils.SeededPositionedRandom, and cz.zdepav.school.texiscript.utils.Rand.
| <T> T cz.zdepav.school.texiscript.utils.RandomGenerator.item | ( | List< T > | items | ) |
Returns a random item from the list or null if it is empty.
| <T> T cz.zdepav.school.texiscript.utils.RandomGenerator.item | ( | T[] | items | ) |
Returns a random item from the array or null if it is empty.
| double cz.zdepav.school.texiscript.utils.RandomGenerator.r | ( | ) |
Returns random double value between 0 (inclusive) and 1 (exclusive).
Implemented in cz.zdepav.school.texiscript.utils.SeededPositionedRandom, and cz.zdepav.school.texiscript.utils.Rand.
| double cz.zdepav.school.texiscript.utils.RandomGenerator.r | ( | double | max | ) |
Returns random double value between 0 (inclusive) and max (exclusive).
| max | Max value (exclusive). |
Implemented in cz.zdepav.school.texiscript.utils.SeededPositionedRandom, and cz.zdepav.school.texiscript.utils.Rand.
| double cz.zdepav.school.texiscript.utils.RandomGenerator.r | ( | double | min, |
| double | max | ||
| ) |
Returns random double value between min (inclusive) and max (exclusive).
| min | Min value (inclusive). |
| max | Max value (exclusive). |
Implemented in cz.zdepav.school.texiscript.utils.SeededPositionedRandom, and cz.zdepav.school.texiscript.utils.Rand.
| int cz.zdepav.school.texiscript.utils.RandomGenerator.sign | ( | ) |
Returns 1 or -1 with equal probability.
Implemented in cz.zdepav.school.texiscript.utils.Rand, and cz.zdepav.school.texiscript.utils.SeededPositionedRandom.
| double cz.zdepav.school.texiscript.utils.RandomGenerator.sign | ( | double | num | ) |
Returns num or -num with equal probability.
Implemented in cz.zdepav.school.texiscript.utils.Rand, and cz.zdepav.school.texiscript.utils.SeededPositionedRandom.
| int cz.zdepav.school.texiscript.utils.RandomGenerator.sign | ( | int | num | ) |
Returns num or -num with equal probability.
Implemented in cz.zdepav.school.texiscript.utils.Rand, and cz.zdepav.school.texiscript.utils.SeededPositionedRandom.


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The input control also has a radio and checkbox type for displaying both radio buttons and checkboxes respectively. Both of these types allow the user to select options from a set of choices. The key difference is that radio buttons only allow one choice.


stats.correlate(xs, ys, skipMissing)
Return the Pearson correlation coefficient between two variables, xs
and ys
.
By default, uses all the values of both variables. If skipMissing
is not set
to true
and missing values exist, return utils.missing
.
The two variables must have the same length.


By registering to donate blood you can also avail the blood bankat select blood banks for respective donors.


Graduate of: Deep Dive Coding

Age: 37

Favorite Anime: Bleach

Most exciting thing i've done: Parachuting

Things I love: My Kids, Family, Friends, Nature, and webDevelopment

Things I enjoy designing:
UX, UI, Web, Mobile, Apps
Design Tools:

I Love To Create cool Things!...
I'm a disciplined designer based out of Anniston, Al.
My talents range from UI/UX wire-framing, and Front-End Development. I enjoy
creating an experience that users can enjoy.

Before I began web development I started out as a logistics tech in the U.S Army. After my obligations with the military I worked as a shipping and receiving clerk for various companies, but eventually I found that I wasn't really happy working with in that industry.

So, one day I came across a wep page that explained what web developers do and what it takes to become one... I became fascinated with the languages, frameworks, and tools, and decided to pursue a career as a web developer. I now take pride in how I can build or help build a product that satisfies the customer.

This was my first team project working with three of my peers during our web development cohort. We created a platform so that alien enthusiast can share and gossip about their experiences around New Mexico; it's called AlienGram. This is where I learned how to implement industry proven problem solving techniques while developing a full stack web application using Express, Node, MySQL, HTML, CSS, and JavaScript.

My personal website was very exciting to build. I learned a lot about documentation and file structure, especially the importance and of clean, reusable code. I utilized boostrap 4 and its components for a better user friendly responsive website regardless of device size.


Troubleshooting¶
Gecode raises the following error at the first execution after the installation (on Linux):
fzn-gecode: error while loading shared libraries: libgecodeflatzinc.so.41: cannot open shared object file: No such file or directory
To solve this problem you need to set the environment variable
LD_LIBRARY_PATH
before running your Python script:export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib/
or put the script into your
~/.bashrc
file and then run:source ~/.bashrc
Minizinc raises the following error when trying to include the gecode library with the
-G gecode
option (on Linux):Cannot access include directory /usr/local/bin/../share/minizinc/gecode/
To solve this problem you need to copy (or create links of) the files in the directory
/usr/local/share/gecode/mznlib
into the directory/usr/local/share/minizinc/gecode
(or wherever the MiniZinc standard library is located on your machine).:cd /usr/local/share sudo mkdir minizinc/gecode sudo cp gecode/mznlib/* minizinc/gecode/
The function
pymzn.dict2dzn
arises aRecursionError
when given anumpy.mat
object as input. This problem arises because the iteration withnumpy.mat
behaves differently thannumpy.ndarray
or built-inlist
. The simplest solution is to convert thenumpy.mat
into anumpy.ndarray
::matrix_array = np.asarray(matrix)


Regression testing¶
When making changes to the Clawpack code base it is a good idea to perform regression tests to insure that the changes have not broken anything.
See also: Keeping track of git versions.
Fortran codes¶
A few quick tests can be perfomed of the classic, amrclaw, or geoclaw codes by running make tests in the corresponding tests subdirectory, e.g.:
cd $CLAW/classic/tests
make tests
This uses nosetests to run a few Python scripts that in turn run the Fortran codes and then compare a small set of values derived from the output of the run with values that are stored in these directories. If one of these tests fails then there is a problem to be investigated, but these tests do not provide good coverage of the code or check that everything is working properly.
A somewhat more complete set of tests can be run by executing all of the codes in the examples subdirectories and comparing the resulting plots with those archived in the Galleries of all Clawpack applications. An attempt at automating this can be found in the $CLAW/amrclaw/examples directory, which uses the imagediff tool described below. This is still under development.
chardiff tool for line-by-line comparison of output files¶
If _output_old and _output_new are two sets of output files from old and new versions of a code, then it is often useful to do a line by line comparison of all of the files in each directory and display any differences. Standard tools such as xxdiff in linux or opendiff on a Mac are not very good for this since they try to match up blocks of lines to give the best match and may not compare the files line by line.
The Python script $CLAW/clawutil/src/python/clawutil/chardiff.py can be used for this purpose:
$ python $CLAW/clawutil/src/python/clawutil/chardiff.py _output_old _output_new
will create a new directory with html files showing all differences. It can also be used to compare two individual files. See the docstring for more details.
imagediff tool for pixel comparison of plots¶
If _plots_old and _plots_new contain two sets of plots that we hope are identical, the Python script $CLAW/clawutil/src/python/clawutil/imagediff.py can be used to compare the corresponding images in each directory and produce html files that show each pair of images side by side. If the images are not identical it also shows an image indicating which pixels are different in the two:
$ python $CLAW/clawutil/src/python/clawutil/imagediff.py _plots_old _plots_new
will create a new directory with html files showing all differences. It can also be used to compare two individual files. See the docstring for more details.
Travis continuous integration¶
Most Clawpack git repositories now contain a file .travis.yml at the top level so that every time a pull request is issued on Github, a basic set of tests is run. This uses the Travis continuous integration platform. Shortly after a PR is issued, Travis will run the commands in the .travis.yml and report the results on the PR page. Look for a green check mark (good) or a red X (bad) next to a commit hash and click on it to see the Travis output. [Sample output]


13 July 2005
Following review of data by the Outbreak Response Team, the Ministry of Health has reported a total of 351 cases and 312 deaths from Marburg haemorrhagic fever as of 10 July. The team is currently following up 64 contacts in Uige Province.
The team continues to receive and investigate alerts to potential cases. Clinical specimens from alerts are being transported to the Public Health Agency of Canada's National Microbiology Laboratory. Continuing support for infection control will be provided to hospitals and health centres in Uige Province.