Chapter 4 Git, GitHub and RMarkdown
4.1 Learning outcomes
By the end of this practical you should be able to:
4.2 Introduction
In this practical you will learn how to produce work that is open, reproducible, shareable and portable using RStudio, RMarkdown, Git and GitHub. As more and more researchers and organisations publish assocaited code with their manusripts or documents it’s very imporant to become adept at using these tools.
You will be able to use the information contained in this guide to prepare the submission for Part 1 of the assessment for this course. The tools you will use are:
RStudio is a graphical user interface (that you should already be familiar with) - it contains a number of features which make it excellent for authoring reproducible and open geographic data science work.
RMarkdown is a version of the Markdown markup language which enables plain text to be formatted to contain links to data, code to run, text to explain what you a producing and metadata to tell your software what kinds of outputs to generate from your markdown code. For more information on RMarkdown, visit here.
Git is a software version control system which allows you to keep track of the code you produce and the changes that you or others make to it.
GitHub is an online repository that allows anyone to view the code you have produced (in whatever language you choose to program in) and use/scrutinise/contribute to/comment on it.
4.3 Set up your GitHub
If you are working on your own computer, you will first need to install git - https://git-scm.com/ - if you are working on the UCL Remote Desktop, you won’t need to do this as it is already installed for you.
Go to http://github.com and install github (if working on your own computer). Create an account and create a new repository (call it anything you like - ‘gis_code’ or something similar), making sure it is public and you check the box that says ‘initialise new repository with a README’ - click ‘create repository’ at the bottom
Your new repository (‘repo’) will be created and this is where you will be able to store your code online. You will notice that a README.md markdown file has also been created. This can be edited to tell people what they are likely to find in this repository.
Now you have created your repo online, you need to ‘clone’ it so that there is an identical copy of it in a local folder on your computer.
There are a couple of ways of doing this, but the easy one is to use the GUI that comes packaged with your git installation.
- The first thing you need to do is copy the Clone URL for your repo from the github website — click the green button in your repo for ‘Clone or Download’ and copy the link:
Now in the windows start menu, go to Git > GUI
Select ‘Clone Existing Repository’ and paste the link from your GitHub account into the top box and the local directory that you want to create to store your repo in the bottom box (note, you will need to add a name for a new folder, once you have selected an existing directory, don’t create a new folder in windows explorer you have to specify it in the file path).
- After a few moments, you should now be able to view a copy of your GitHub repo on your local machine. This is where you will be able to store all of your code and some other files for your reproducible research.
4.4 Using RStudio with Git
Now, as I’ve mentioned before, RStudio is totally bad-ass. Not only does it make R fun to use, but the lovely people who created it also built in support for things like git!
For a full and excellent tutorial on using Git with R Studio, watch this webinar: https://www.rstudio.com/resources/webinars/rstudio-essentials-webinar-series-managing-part-2/
If you don’t want to watch the vid, I’ll do a quick summary below. So, to use git, first you need to enable it in RStudio:
At the time of writing, because of the way that RStudio has been installed on the UCL Remote Desktop, git integration does not work. As such, if you are working on the remote desktop, DO NOT follow instructions 9 to 19 below, jump straight to instruction 20. If you are working on your own computer then fine, carry on.
Open RStudio. In RStudio Tools > Global Options, under ‘Git/SVN’ check the box to allow version control and locate the folder on your computer where the git.exe file is located. Allow Version Control for new Projects and navigate to where the git.exe file is on your computer. Click OK.
Now in RStudio, you should create a new project in an existing directory - File > New Project > Existing directory - choose your new git repository as your new project folder. You should not see a git tab in the environment window of RStudio (top right).
Note You could also link your Git directly from RStudio following: File > New Project > Version control > Git. But carry on using these insturctions for now.
Open a new R Notebook in RStudio: File > New File R Notebook
Type some stuff (anything so that’s it’s not a blank empty file) at the top of the file and save it.
You should see the files appear under the Git tab
- As well as saving, which saves a copy to our local directory, we will also ‘commit’ or create a save point for our work on git. To do this, you should click the ‘Git’ icon and up will pop a menu like the one below:
You can also click the Git tab that will have appeared in the top-right window of RStudio. Up will then pop another window that looks a little like the one below:
Stage the changes, add a commit message so you can monitor the changes you make, then click commit
Make some more changes to your file and save it. Click comitt again then in the review changes box you will be able to see what has changed within your file. Add a comitt message and click commit:
4.5 Using Git outside RStudio
Sometimes RStudio Git can be a bit temperamental. For example, when staging the files they can take some time to appear with the ticked box (I think this is because we are working from the Network). A way around this in RStudio is to click the commit button, select to stage all the files, wait a few seconds then close the review changes box and commit from the buttons in the Git tab in the environment quadrant.
Alternatively if you would like to use Git but you’re working on the UCL Remote Desktop or you are experiening other problems with getting git working in RStudio, fear not, you can just use your raw Git installation.
In the Start Menu, open the git GUI. Start > Git > Git GUI. You should open the existing repository that you have just created.
Whenever you have made some changes to your files in your cloned repo, you can use git to review the changes and ‘Commit’ (save) them and then ‘Push’ them up to your master repository on GitHub.
To review and commit your changes, in the commit menu, simply:
- scan for changes
- stage them ready for committing
- commit the changes
- push the changes to your GitHub repo
4.6 Push to Github
Now we can push our changes to github using the up arrow either in the RStudio git tab (envrionment quadrant), or from the review changes box (opens when you click commit).
- To do this, first make sure you have committed any changes to your local cloned repo and then click the ‘Push’ button to whizz your code up to your master GitHub repo — you will probably be prompted to enter your github username and password to enable this…
But….if the push button is greyed out go to the section Greyed out push button
4.7 Pull from GitHub
Pull will take any changes to the global repo and bring them into your local repo. Go to your example GitHub repo (online) and click on your test file > edit this file.
Add a line of code or a comment, preview the changes then commit directly to the master branch.
Now in RStudio click the down arrow (Pull) request. Your file should update in RStudio.
If you were to update your file on GitHub and your local one in RStudio seperately you would receive an error message in RStudio when you attempted to commit.
4.7.1 Troubleshooting
<IP_ADDRESS> Were you challenged for your password?
As of January 2019 it is possible that Git will use a credential helper provided by the operating system. So you should be asked for your GitHub username and password only once. As I am already logged into mine and I started using GitHub a while ago i’m not exactly sure when you will be asked for you details.
You can however set your usename and email manually using the git prompt.
Go Tools > Shell and enter:
git config --global user.name 'yourGitHubUsername'
git config --global user.email<EMAIL_ADDRESS>These only need to be set once.
4.8 Fork a repository
A Fork in github is a copy of someone elses repository. You could use it as a base starting point for your project or to make a fix and then submit a pull request to the original owner who would then pull your changes to their repository.
You can fork a github example repository from: https://github.com/octocat/Spoon-Knife
Once you fork it, you should see it in your repositories
4.9 Branches
Each repository you make in git has a default branch but you can create new branches to isolate development of specific areas of work without affecting other branches — like a test envrionment.
 Click the branch drop down and type in the name for a new branch:
Now click on the README.md file > edit this file
Add some changes, preview them and complete the commit changes box at the bottom of the screen.
Here, we’re going to commit directly to the new branch. We could have made this changes to the master branch and then made a new branch for them at this stage. Commit the changes.
Go to the home page of our example branch (click the branch down arrow and select your example branch). You’ll see that our example branch is now 1 commit ahead of the master.
Now let’s create a pull reqest to the master branch. It you had modified someone elses code, then you would send a reqest to them to pull in the changes. Here we are doing a pull request for ourselves — from our example branch to our master.
Click New pull request.
At the top you will see the branches that are being compared — the base defaults to githubs example repository, change it to yours.
Now scroll down and you will see the comaparison of between the two branches. Click create pull request.
Select squash and merge > confirm squash and merge. This means that all our commits on the exmaple branch and squashed into one, as we only have one it doesn’t matter but could be useful in future.
Got back to your master branch repositry and you should see the changes from the example branch have been merged.
4.10 Health warning
To avoid merge conflicts be careful with your commits, pushes and pulls. Think about what you are doing each time. GitHub help pages are quite comprehensive..https://help.github.com/en/articles/resolving-a-merge-conflict-on-github
4.11 RMarkdown
OK, so now you have set everything up so that you can become a reproducable research ninja! All that remains is to do some reproducable research!
For the definitive guide on R Markdown, please read R Markdown: The Definitive Guide — obviously! It will tell you everything you need to know, far beyond what I am telling you here.
There is also an excellent guide on the R Studio website -https://rmarkdown.rstudio.com/lesson-1.html
And a quick cheatsheet here: https://github.com/rstudio/cheatsheets/raw/master/rmarkdown-2.0.pdf
And an older one here: http://www.rstudio.com/wp-content/uploads/2016/03/rmarkdown-cheatsheet-2.0.pdf
One of the awesome things about R Markdown is it can be converted into a range of different formats - html for webpages, word documents, PDFs, blogs, books - virtually everything!
Now, earlier on in this exercise, I got you to open a new R Notebook or R Markdown file. They are both R Markdown Documents, but the Notebook allows chunks of code to be run independently.
….Add Rmarkdown, making a website then bookdown as advanced section.


Priest told funeral boy, 18, had killed himself then condemned 'sin' of suicide
A Catholic priest was blasted for telling a teenage boy’s funeral that the youngster had killed himself, before condemning him for it.
Linda Hullibarger had not disclosed her 18 year-old son Maison Hullibarger’s cause of death when the Reverend Don LaCuesta decided to tell a packed church what had happened.
A lawsuit filed by Hullibarger says LaCuesta ignored her request for a ‘positive, uplifting and loving message,’ at the service in Temperance, Michigan.
The priest instead ranted about the ‘sin’ of suicide, refused to allow Maison’s family to speak and banned them from participating in a ceremony called the laying of the cloth, it is claimed.
LaCuesta reportedly said: ‘I think that we must not call what is bad good, what is wrong right.
‘Because we are Christians, we must say what we know is the truth — that taking your own life is against God who made us and against everyone who loves us.
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‘The finality of suicide makes this all the worse. You cannot make things right again.’
His revelation about how Maison had died left many who attended the funeral ‘visibly distraught,’ the lawsuit alleges.
The youngster’s dad Jeff tried to halt the rogue priest on two occasions, only for LaCuesta to rebuff his efforts, court papers say.
The Hullibargers complained about LaCuesta, and met with Archbishop Allen Vigneron, NBC News.
But he reportedly told them that ‘he wasn’t there to discuss father LaCuesta,’ and told them to ‘let it go’ when they pressed the issue.
They have now sued at Wayne County Circuit Court, 50 miles south of Detroit, for an undisclosed amount for emotional distress, misrepresentation and invasion of privacy.
LaCuesta has since been barred from speaking at funerals at the Archdiocese of Detroit for failing to ‘display appropriate sensitivity to the situation.’
He apologized shortly after the disastrous funeral, admitting he fell ‘well short of providing them the comfort they so desperately needed.’
The priest continued: ‘Instead, I added to their pain.
‘I deeply regret that, and I am sorry.’
A court hearing has been scheduled in for February 12.
For 24/7 confidential emotional support, contact the National Suicide Prevention Lifeline on 1-800-273-8255 in the US. For the UK contact Samaritans on 116123 or visit a local Samaritans branch, see www.samaritans.org for details.


Perast is an old town on the Bay of Kotor. It is situated a few kilometres northwest of Kotor and is noted for its proximity to the islets of St. George and Our Lady of the Rocks. This is a lovely little port, steeped in naval history.
Perast has a small town quay right in the centre of everything. Depth of approximately 4 meters and no charge for berthing.
Note however that yachts can only stay between 18.00 and 09.00 as tourist boats use the quay all day. There is no water or electricity. Worth an overnight stay if you don't mind an early morning.
The quay is convenient for tavernas, there is a mini market, post office etc.
It's worth taking the ferry to Our Ladies Island to visit the church and museum there.
Last updated July 2015.


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"My Closet"
<At "My Closet" this app allows you to use existing clothes within the closet to make outfits or go online and pull images to create outfits. This app prevents the dreaded sitiuation of buying several articles of clothing that don't match or that don't go together well.Here at "My Closet" know how hard it is to make a great outfit work unless your Sam Saunders, but we can help you get pretty darn close!
The outfits that you create can be directly accesssed by clicking on this link and you can adjust, delete or create new outfits based on what you like.
This link takes you to all of the Accessories that are in your closet that you can add or delete to an outfit and search the net and add these new Accessories to your closet!
This link takes you to all of the Tops that are in your closet that you can add or delete to an outfit and search the net and add these new Tops to your closet!
This link takes you to all of the Bottoms that are in your closet that you can add or delete to an outfit and search the net and add these new Bottoms to your closet!
This link takes you to all of the Shoes that are in your closet that you can add or delete to an outfit and search the net and add these new Shoes to your closet!


Smart Extensions
Home | Getting Started | API | Elements | Actions | Validators | Handlers | Configuration Options | Advanced Guides | Troubleshooting | About
Table of Contents
1 Overview
Smart Extensions are a feature of the Nitrogen Dynamic Route Handler, which
gives the ability to use different entry points into a page module based on
the extension provided to the request. Using this feature, through your
application's configuration, you can add, for example. a .json
extension to
a request, and have Nitrogen call the json_main()
function, which returns a
simple Erlang Proplist. The routing system would then convert that proplist
to a properly formatted JSON string.
Usage
To use a smart extension, you would add the following to
your nitrogen
application configuration:
{smart_extensions, [ {EXTENSION, ENTRY_FUNCTION, PROCESSING_FUNCTION} ]}
EXTENSION
- is the string extension of the file ("json", "csv", etc).
ENTRY_FUNCTION
- is the function in our page module that
is called. For Nitrogen's built-in JSON smart extension, you might call
it
json_main
). This is expected to be an atom. PROCESSING_FUNCTION
- identifies the module and function
of a pre and post- processing function. It can either be the atom
undefined
, in which case no pre or post processing will be done. If, however it's a two-tuple consisting of{Module, Function}
, it will callModule:Function(EntryFun)
passingENTRY_FUNCTION
above as the only argument.
Example
To use Nitrogen's built-in JSON smart extension the following would be used:
{smart_extensions, [
{"json", json_main, {nitrogen_smart_extensions, json}}
]}
Then add a json_main()
function to your page module, which
returns an Erlang proplist. The proplist will automatically be
converted to a JSON string and the MIME-type will be set to
"application/json".
Here's an example of a json_main()
function in action.
json_main() -> [ {favorite_fruit, <<"This is a string">>}, {a_list_of_numbers, [45, 100, 50000, 60]}, {some_value, "This would also render as a list of numbers"} ].
The Smart Extensions feature knows that with the JSON to convert the proplist into a JSON-encoded string that looks like this:
{ "favorite_fruit":"This is a string", "a_list_of_numbers":[45,100,50000,60], "some_value":[84,104,105,115,32,119,111,117,108,100,32,97, 108,115,111,32,114,101,110,100,101,114,32,97, 115,32,97,32,108,105,115,116,32,111,102,32, 110,117,109,98,101,114,115] }
As you can see, "This would also render as a list of numbers" rendered as a list of numbers. This is due to the JSON encoding which treats string-lists as literal lists of integers. If you need a string to be encoded and sent to the client, make sure to use a binary instead of a string list.
A Simple Smart Extension
You can add your own smart extension as well. The simplest smart extension would be to simply provide an entry point for an extension. First adding {"my_ext", my_entry}
to to the list of smart extensions in your config:
{smart_extensions, [
{"my_ext", my_entry}
]}
Then add the following to a page you wish to use the my_ext
smart extension with:
my_entry() -> "This is my the my_ext smart handler".
This is the simplest kind of smart extension. Simply put, if it sees a
.my_ext
as the extension, it would use my_entry()
as the entry point
in your module, and be done with it. There would be no pre- or
post-processing performed with it - whatever is returned by the function
would be sent to the browser.
An Advanced Smart Extension
Adding a more advanced smart extension allows you to do pre- and post-processing. Expanding on the above, let's say we have some weird legacy system that expects a series of words in all upper-case, each one its own line, and to automatically download as a file called "legacy.txt", and we wanted the extension of the request to be "textlist".
So the specs would be something like this:
- Request:
/download/mydata.textlist
- Which downloads a file to the filesystem called "legacy.txt"
- And which looks like this:
WORD APPLE BANANA LINUX NINJA
First, let's add smart extenion to our app.config:
{smart_extensions, [
{"textlist", textlist, {textlist_handler, handle}}
]}
Simply stated, this means: "If the request ends with .textlist, and our page
module has a textlist/0
function, we're going to call
textlist_handler:handle
, which will pre-process and call
Page:textlist()
, then post-process the result.
So let's edit our page module (by the request above, it should be download_mydata
- remember slashes become underscores in modules):
-module(download_mydata) -compile(export_all). textlist() -> %% more likely, these words would be read from a database or something, but %% for the sake of our demo, we're just hardcoding a list of words ["word", "apple", "banana", "linux", "ninja"].
Now we need to create our textlist_handler
module to do the pre and postprocessing.
-module(textlist_handler). -export([handle/1]). handle(EntryFun) -> %% Force it to download as the filename legacy.txt wf:download_as("legacy.txt") %% Force the content type to text/plain wf:context_type("text/plain") %% Let's call the entry function, which is passed to us as a function. List = EntryFun(), %% Let's ensure all values are strings, and convert them to uppercase: UpperList = [string:to_upper(wf:to_list(X)) || X <- List], %% Finally, let's make sure each ends up on its own line and return that wf:join(UpperList, "\n").
And that's it.


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IN THE HIGH COURT OF JUDICATURE AT PATNA Criminal Miscellaneous No.63060 of 2017 Arising Out of PS.Case No. -64 Year- 2017 Thana -M ALSALAM I District- PATNA ====================================================== 1. Nagendra Kumar, Son of Binda Rai, Resident of Hira Nand Ki Gali, Police Station- Chowk, Patnacity, District- Patna. .... .... Petitioner/s Versus 1. The State of Bihar. .... .... Opposite Party/s ====================================================== Appearance : For the Petitioner/s : Mr. Sanjeet Kumar, Advocate For the Opposite Party/s : Mr. Md. Nazir Ansari, APP ====================================================== CORAM: HONOURABLE MR. JUSTICE JITENDRA MOHAN SHARMA ORAL ORDER
2 30-01-2018 Heard learned counsel for the petitioner and learned counsel for the State.
The petitioner apprehends his arrest in connection with Malsalami P.S. Case No. 64 of 2017, G.R. No. 1163 of 2017 registered for the offences punishable under Sections 268,270,278,308,326 of the Indian Penal Code.
Allegedly, in spite of publication of the notice in the Newspaper for converting the brick kilns into cleaner technology so that the same may run without air pollution, on inspection, 19 brick kilns, including the brick kiln of the petitioner were found running without following the procedure under Section 21 of Air (Prevention and Control of Pollution)Act, 1981.
Submission is of false allegation that in fact the Bihar Patna High Court Cr.M isc. No.63060 of 2017 (2) dt.30-01-2018 2/3 State Pollution Control Board extended the period for converting the brick kilns into Cleaner Technology till 31.08.2018, which would appear from Annexure- P/2 to this application. But the present FIR has been lodged on 12.04.2017. The petitioner has already taken steps in that regard by filing application before the Bihar State Pollution Control Board. The petitioner has got no criminal antecedent and in this case several similarly situated co- accused persons namely Baijnath Singh, Binod Yadav, Pintu Kumar, Mantu Singh, Suresh Kumar Yadav, Shiv Kumar Singh, Sanjay Singh, Dhirendra Kumar have already been allowed pre- arrest bail by different coordinate Benches of this court and as such the petitioner also deserves sympathetic consideration.
Learned APP fairly submits that other co-accused persons have already been allowed pre-arrest bail.
In the facts and circumstances stated above, let the petitioner above named, in the event of his arrest or surrender before the Court below within a period of four weeks from the date of receipt/production of a copy of this order, be enlarged on bail on furnishing bond of Rs. 10,000/- (Ten Thousand) each with two sureties of the like amount each to the satisfaction of the Judicial Magistrate 1st Class, Patnacity, in connection with Malsalami P.S. Case No. 64 of 2017, G.R. No. 1163 of 2017 Patna High Court Cr.M isc. No.63060 of 2017 (2) dt.30-01-2018 3/3 subject to the conditions as laid down under Section 438(2) of the Cr.P.C.
(Jitendra Mohan Sharma, J) khushbu/-
U T


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This Custom Pokemon Porsche Honors All Things Bulbasaur
There are fans of Pokemon, and then there are guys like Akira Nakai. If you haven't heard of this man,
then you will soon know just about everything you need to. After all, the car-loving Pokemon fan is
going viral for his most recent customization, and it has everything to do with Bulbasaur.
Over on Twitter, fans got a look at a project done by Nakai when photos of a recent customization went
live. The fan, who is a well-known car tuner, gave an old-school Porsche a face lift in the name of
Pokemon. And as you can see below, the car is one worthy of any Bulbasaur enthusiast.
That is, if they have got some cash to spend.
As the pictures show, Nakai took an old top-down Porsche from years gone and gave it new life. You can
see the car has been given a shiny light green paint job that matches Bulbasaur's body perfectly.
Matched with some sleek tires, the Porsche has a black hood and dark detailing that leads into a giant
BULBASAUR decal on the car door. If you look close, you can also see decals of Bulbasaur are on the car
which put the finishing touches on this makeover.
There are no details on who this Porsche customization was for or how much it cost. However, fans know
no part of this process came cheap. Even having Nakai work on the car proves the owner was a big spender
given how famous the tuner is. Nakai and his company RAUH Welt BEGRIFF is one of the most in-demand
tuners for older Porsche models in the world, so Bulbasaur got a true luxury treatment this with
high-price Pokemon makeover.
So, what do you think about this impressive Pokemon piece? Let me know in the comments or hit me up on
Twitter @MeganPetersCB to talk all things comics and anime!
Attention All Squirtle Squad Members, You Can Preorder a Squirtle Funko Pop
Throw on your best pair of sunglasses, it is time to join the Squirtle Squad. Funko Pop! finally
released their Squirtle vinyl for preorder. Who doesn’t want to own the cutest and, quite frankly, best
water-type Pokemon?
Thanks to Entertainment Weekly, we know this Squirtle is already a best-seller on Amazon, just one week
after his debut. The Funko is currently at the top of Amazon’s Best Sellers in Action Figures list
(along with a ton of other Funko Pop! vinyls).
You can preorder the Funko Pop! Pokemon – Squirtle now and it will ship out around September 1, 2019.
And if you don’t already have them, Pikachu, Charmander, and Bulbasaur are already available from Funko
Pop! to round out Ash’s original squad (no disrespect to Caterpie and Pidgeotto).
Pokémon GO Players Can Now Dress Up As Bulbasaur, Charmander And Squirtle
Pokémon GO may well be full of Generation 5 monsters at the moment with the introduction of some of
Pokémon Black and White's finest, but these new cosmetic items are perfect for those who can't resist
the nostalgia of the original critters.
Available to purchase within the game's store as we speak are these Bulbasaur, Charmander and Squirtle
hoodies and backpacks. Each item costs 200 Pokécoins each, meaning you'll need to spend 400 if you want
the complete set. The hoodies do work rather nicely on their own though if you're limited on funds.
It was recently revealed that Pokémon GO just enjoyed its biggest month since 2016, generating a
whopping $176 million throughout the month of August. We imagine a fair few of these new clothing items
will sell, too, which definitely won't do the app any harm.
 Will you be grabbing these new items? Tell us below.


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Workflows allow you to chain rules together to form sequences of actions.
While a single rule can fill forms on a single page, workflows continue to execute even after a page reload.
Use the "Workflows" menu on the left side to create
workflows and add existing rules in an arbitrary order.
You can drag and drop those workflow steps to reorder them.
Notice that a workflow by itself doesn't submit any forms or changes or reloads the page url.
This is something you must do at the end of every rule.
Usually you can archieve this by using a value function that clicks on a link or button.
Example rule that clicks on a submit button:
{ name: "a clicking rule", url: /some-url/, fields: [{ selector: "form input[type=submit]", value: Libs.h.click }] }
If you run a workflow and strange things happen (like you can't execute rules after that), try the button in the Workflows panel.
Once you have defined a workflow it will be shown in the rules popup
if the condition of the first rule in the workflow matches.
Click on the workflow will execute it
This is what the popup will look like:


After whats seemed like an eternity, Apple has delivered on their promise of Airpods for christmas. Apple hit some unexplained delivery delays on these headphones after it courageously removed the headphone jack on the iphone7.
Well they have finally arrived in mailboxes and apple stores. In true fashion apple under promised and over delivered by delivering my headphones 2 days ahead of time on launch day
My First impressions of using them for the last few days has been great so far. The airpods paired as soon I opened up the case ( and charger ) thanks to the new W1 chip. They fit snugly in my ears and seem very hard to drop. They sound great to my ears. Much better than the wired ones. I have noticed that the stereo separation is much better as I picked up sounds that I have not previously. My standard testing tracks of Pink Floyd, Eagles and the beats radio station were my initial testbed. I have listened to multiple podcasts without any drops outs while roaming thru the house and long dog walks. I watched a Netflix shows with no lag on my iPad Pro. Thanks to the apple magic sauce they show up magically on my apple watch, ipads, and computer via icloud.
Here are some more that provide more details on one of my favorite gadgets of the year.
Reviews


About
Welcome to the OwO developers' blog. Stay for a while, sit down, listen.
on second thought, turn around when possible
This is where Aurieh and Dean post happenings with OwO (the service) and OwO (the code).
If you've never heard of it before,
OwO is a private file
hosting service currently hosted in Germany that stores hundreds of
thousands of files < 100M
(mostly
screenshots) for a couple hundred users. Our code is
open source,
and no logs are kept on uploads (we store anonymous information on CDN
origin requests). OwO is a free service supported by donations that runs no
advertisements.
OwO also hosts a small GitLab server for it's users, a public Matrix homeserver for decentralized communication, and we are looking to host more public services that promote anonymity or decentralization.
Some posts will be short and some will be lengthy, luckily for you the
reader there are little x minute read
things for each post displayed on the index and at the top of each post's
page. The theme we use for this blog is Chalk, and there's a link in the
footer to the GitHub page. You'll probably notice we changed it up a little
bit, monospace fonts and some other small edits. The code for this blog can
be found on
GitHub.
Note: this blog probably contains coarse language. You have been warned.


aerosol Niño monsoon aerosols model Asian Asia (Fig. Indian UTLS layer ATAL India rainfall Geophys. Res. South region troposphere {border-style East SST changes summer Atmos. px;} simulations #ffffff;} droughts surface radiative Aerosol season circulation radiation solar Phys. severity upper using ./acp--- Chem. Lett. North associated carbon effect emissions loading sulfate CALIOP Figure forcing hPa) lower period study years Model data observations ratio scattering simulation year ./s--- ECHAM-HAMMOZ May Niño. anomalous black contribution dust effects gases impact increase px; simulated strong transport tropospheric {font-family CALIPSO Clim. TOMS anomalies boundary cooling created distribution drought elevated font-size higher lidar measurements optical ozone presence transported water Global MISR Pacific Sci. Soc. Vernier aeronEL climate double; experiments global index large leads monthly region. role seasonal subsidence varying vertical volcanic nm (Figure (–°N, China Ensemble Fadnavis Fig. India, Lau Layer Meteorol. Plateau Tibetan [], anthropogenic ascent atmospheric border-color border-width considered depth emission enhancement forced induced influence mean northern observed organic precipitation regional satellite shows solid; stratosphere vapour warming {font-style {font-weight AMIP Am. Arabian Atmospheric Bull. COLA/GrADS Climatological Commons Creative June Kumar Nat. Nature Niño, Tropopause additional aeronCL, aerosols, amounts atmosphere averaged backscatter bold central climatology cloud compared courier; desert em; enhanced events experiments, fires frequency gas general grid.. half impacts important information known large-scale mainly obtained pre-monsoon pt;} pulse reduced reduces sensitivity software). stratospheric thicker trend tropical zonal


{% extends 'bom/bom-base.html' %} {% load staticfiles %} {% load materializecss %} {% block head-title %}{{ title }}{% endblock %} {% block main %} {{ add_subpart_form.media }} {% endblock %} {% block bom-menu %} {% endblock %} {% block content %}
To batch add subparts to an assembly BOM, select the parent part number and upload a csv that contains columns with the headers 'part_number' or 'manufacturer_part_number', and a column with the header and 'quantity'.
If specified, the part number must have been already created in IndaBOM. Similarly, if specified, the manufacturer part number must have been already created in IndaBOM.
Additional fields include 'reference' or 'designator' to add a reference field to the subpart; 'do_not_load' if you don't want the part loaded into the assembly that contains it; 'dnp' if you don't want to upload the part to IndaBOM at all (i.e., just skip over it).


Publications
My publications in reversed chronological order. Generated by jekyll-scholar. * denotes co-first authorship.
2023
-
Blueprint: A Toolchain for Highly-Reconfigurable Microservice Applications To appear at SOSP’23 2023
-
The Benefit of Hindsight: Tracing Edge-Cases in Distributed Systems 20th USENIX Symposium on Networked Systems Design and Implementation (NSDI 23) 2023 [PDF]
2022
2020
-
Smooth Kronecker: Solving the Combing Problems in Kronecker Graphs In Proceedings of the Joint Workshop on Graph Data Management Experiences and Systems (GRADES) and Network Data Analytics (NDA) (Co-located with SIGMOD) 2020 [PDF]
-
Dara the explorer : coverage based exploration for model checking of distributed systems in Go 2020 [PDF]
-
Aggregate-driven trace visualizations for performance debugging arXiv preprint arXiv:2010.13681 2020 [PDF]
2019
-
Sifter: Scalable Sampling for Distributed Traces, without Feature Engineering In Proceedings of the ACM Symposium on Cloud Computing 2019 [PDF]
2018
-
Dara: hybrid model checking of distributed systems In Student Research Competition, Proceedings of the 2018 26th ACM Joint Meeting on European Software Engineering Conference and Symposium on the Foundations of Software Engineering 2018 [PDF]


{% extends 'base.html' %} {% block main %}
For a funded PhD position, you should have a bachelor and masters level degree (integrated or separate) equivalent to a UK first class (bachelor) and distinction (master).
For more details on minimum entry requirements, please see the PhD requirements page (and the Country-specific requirements). However, please note that these are only minimimum, strict requirements for eligibility. Funding is competitive and usually requires grades substantially higher than the minimum requirements (see details below). Note that I do not accept self-funded students, so obtaining funding is required.
Use the pre-submission enquiry page to see if your suggested topic and background are appropriate for my group. Note that I usually reply to pre-submission enquiries within a week or two, whereas the full application procedure takes 6-8 weeks.
Full applications are submitted through the Imperial College system. You will need to write a research statement of 1-2 pages in addition to your transcripts, references, and English language test results (if applicable). Applications are processed by Imperial College admin, a process that normally takes 6-8 weeks before it is sent to me.
Note that funding is competitively allocated by a panel. I would encourage you to consider their criteria (see below) when writing your application to maximise your chances of success. Make it easy for the panel to find relevant experience justifying a high ranking.
If your application is successful, you will be invited to an interview. Interviews are with me and one other faculty member at Imperial, and typically last around one hour. We will send you a paper to read a week in advance, and ask you to summarise and discuss it in the interview. We will normally ask you to talk about previous project work, and what you would like to work on (in broad terms) during your PhD. We will not ask you to solve puzzles or problems. You will have an opportunity to ask us questions, and we will also put you in touch with one of our current PhD students to chat to in confidence. I will let you know the outcome of the interview within a week normally.
If successful at the interview stage, you will be given a formal offer, but this does not come with funding. I will submit your application for consideration for Imperial College funding. This is assessed competitively at a panel that meets every few months. I will let you know when the panel takes place, and offers are usually made within two weeks after the panel. There are other options for funding including the China Scholarship Council. For more information about funding options, see here.
Note: I do not accept self-funded students.
Normally an undergraduate or masters qualification at an equivalent level to a UK 1st or Distinction is required. You can get a rough idea of UK equivalency here (although this is not guaranteed to be accurate). This document has been withdrawn but gives slightly more detail of these equivalencies for many countries.
The criteria for funding decisions are below, and discussed in more detail along with various other options here.


In this tutorial, we discuss the theory behind the CayMon tool. Not to get too mathy (for that, read the FOSSACS'19 paper), we shamelessly intermingle the world of sets and functions with Haskell types and Haskell functions, so semantic purists are kindly asked to keep their cool.
Where do monads come from?
This is not a monad tutorial, so we assume that the reader is familiar with the concept, at least as it is used in programming. In Haskell, monads are defined as a type class. The one we show below is the one from Haskell's standard library stripped off some Haskelly noise (such as the Applicative
constraint):
class Monad m where
(>>=) :: m a -> (a -> m b) -> m b
return :: a -> m a
Different flavours of monads are closely related to different flavours of algebraic theories. For example, a famous result by Fred Linton says that finitary equational theories are equivalent to finitary monads on the category Set. For example, the list monad
data [a] = a : [a] | []
is closely related to the theory of monoids:
Operations: +, 0
Equations: (x+y)+z == x+(y+z), x+0 == x, 0+x == x
The relationship is this: for a set A
, the free monoid generated by A
is given by [A]
, while the freeness gives the implementation of >>=
and return
(for a super-quick introduction, see here). The +
operation is implemented as ++
, while 0
as the empty list []
.
The same story works for the Maybe
monad:
data Maybe a = Just a | Nothing
It arises from the theory of pointed sets:
Operations: ! (nullary)
Equations: (none)
The free pointed set generated by a set A
is indeed Maybe A
, while the !
operation is obviously implemented as Nothing
.
There are many more examples. What do we gain by understanding the equational theory behind a monad? We get some operations that we can use in programming and we get to know their equational properties that we can use to reason about our programs (check out this paper for a detailed explanation and many more examples).
Monads from equational theories... in Set
If we consider sets and functions (as in mathematics), the trick with free algebras of (finitary or otherwise well-behaved) equational theories always produces a monad.  But as Haskell programmers, we are not happy with the recipe. We can define terms over a signature (using free monads), but we cannot quotient! For example, free monoids can be expressed as lists, but throw in inverses (to get groups) and try to implement the free group monad. Not a chance!
So, which equational theories induce implementable monads? Disappointingly, we will never know in general, because this problem is undecidable, I think. We can, however, try to better understand some particular cases or some broad class of particular cases.
Monads from Cayley representations
The class of particular cases that we want to look at comes from the following theorem:
THEOREM If an equational theory has a well-behaved Cayley representation Rep
, the monad induced by the theory can be implemented as the type
data CayMon a = C (forall x. (a -> Rep x) -> Rep x
The name CayMon
stands for "Cayley monad". We do not expand on what we mean by "well-behaved", because we promised not to be too mathy in this tutorial.
But what is this Cayley representation? First, let us discuss the particular case for monoids (Arthur Cayley was more into groups, but we, Haskell programmers, cannot afford inverses). The theory of monoids can be encoded as a type class with a conventional set of equations:
class Monoid a where
unit :: a
comp :: a -> a -> a
-- Instances should satisfy the following laws:
-- comp unit x = x
-- comp x unit = x
-- comp (comp x y) z = comp x (comp y z)
There is one particularly fancy monoid, or rather a family of monoids:
data Rep v = Rep (v -> v)
instance Monoid (Rep a) where
unit = Rep (\x -> x)
comp (Rep f) (Rep g) = Rep (\x -> f (g x))
The super-cool thing is that we can encode the behaviour of every monoid in this one:
toCayley :: (Monoid a) => a -> Rep a
toCayley x = Rep (\y -> comp x y)
fromCayley :: Monoid a => Rep a -> a
fromCayley (Rep f) = f unit
toCayley
is a monoid homomorphism and that fromCayley . toCayley = id
. These two facts (+ some additional conditions that make the representation "well-behaved") are enough for the theorem above to apply.
Evidently, Rep
is implementable in Haskell, so the theorem gives us an implementation of the monad induced by the theory of monoids. (BTW, if we inline the definition of Rep
in the definition of CayMon
, we get forall x. (a -> x -> x) -> x -> x
, the Church representation of lists, as noticed by Ralf Hinze).
The idea is to generalise this to different theories and settings. For example, type Rep x = S -> x
turns out to represent state (where S
is a type of possible states), while type Rep x = (S -> x) -> x
represents backtracking with one global mutable cell.
A careful reader might have noticed that the shape of the monad resembles the codensity monad. One important difference is that Rep
is a type constructor, but not necessarily a functor - however, the implementation of the monadic structure (return
and >>=
) is actually identical in the continuation, codensity, and Cayley monads.
Are we in a better place now?
The task of coming up with an implementable representation for a given theory is not an easy one. For sure you cannot mechanise it, again, for complexity reasons. Our strategy is to reverse the question: given a type constructor Rep
, produce a theory that is represented by Rep
. We will not be able to see every such theory, just as we cannot recognise every theory that gives nondeterminism or state - people seem to be happy with the familiar ones: monoids and put
and get
with equations respectively.
Thus, the overall goal is to explore the space of types, and see what kind of effects are implementable by exploring possible implementations. The space of types is more structured than the space of all equational theories, which means that we can recognise some more or less canonical classes. For now, we have something to say about polynomials with natural coefficients, that is, types of the form
type Rep x = P x -> x
where P x
is any type formed from products, sums, the variable x
, and natural numbers. A number n is understood as a type with n inhabitants, e.g., 0 is Void
, 1 is ()
(unit), 2 is Bool
, and so on.
Enter CayMon
WARNING: CayMon is a research-level exploratory software. Reading its source code might help you understand some details, but its overall internal chaos will give you a headache. Read source code responsibly!


---
layout: home
search_exclude: true
image: images/logo.png
---
Books, Data Science & ML
Unleashing Creativity
This is a repo for my study notes and book reviews in both english and spanish. Any comments or corrections are welcome.
Book Reviews
Non-fiction
| Reviews |
Links |
| Trustworthy Online Controlled Experiments |
English |
| A more beautiful question |
English |
Data Science
A/B Testing
| Posts |
Links |
| A/B Testing Basics |
Español |
# Posts


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Hi, This Is my first portfolio website. In this website you can find information about me or my other projects. You can even contact me! Enjoy!


Facebook style jQuery plugin for instant messaging.
ChatJS is a jQuery plugin for instant messaging. It's completely client-side, so it's completely platform agnostic.
Server side communication is implemented through Adapters. The adapter is the piece of code that is responsible for handling client/server communucation. ChatJS comes with a demo adapter that you can see running in the bottom right of this page. It's just an echobot that will repeat what you say. You can use it as a boilerplate to implement your own. The server portion of your solution will be written according to the adapter specification.
I intend to display here a list of all adapter implementations. ASP.NET MVC coming soon.
Once your server code is ready, that's how ChatjS looks in the client:
<script type="text/javascript">
$(function () {
$.chat({
userId: 1,
roomId: 1,
typingText: ' is typing...',
emptyRoomText: "There's no one around here.",
chatJsContentPath: '/basics/chatjs/',
adapter: new DemoAdapter()
});
});
</script>
Pull requests are very welcome.
If you want to implement an adapter, that's very welcome too. Please let me know if you need assistance by submitting a GitHub issue. I have a tight schedule but I'll answer as I have time.
ChatJS is written in TypeScript. If you are not familiar with it, TypeScript has a flat learning curve, as it's a JavaScript superset. If know JavaScript, you know TypeScript, except for the aspects in which it adds to the language.
I develop ChatJS in Visual studio because it's the IDE that i'm most used to and it has great typescript support. Alternatively, you can use WebStorm or simply use your editor of choice and the NPM TypeScript Transpiler to make it into vanilla JavaScript.


Here's a penguin for you!
Don't like the penguin? Here's JQuery to hide it!
Want the penguin back?
SVG Image:


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Taskmaster
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Taskmaster
Organizing your daily life, to enable you to...
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...work more effectively and get things done..
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...unlock your potential and your time..
Taskmaster
...to do the things that
you
care about most.


This platform is part of the Interconnect EU project.
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This project has received funding from the European Union’s Horizon 2020 research and innovation programme under Grant agreement No 857237.
DISCLAIMER: The sole responsibility for the content lies with the authors. It does not necessarily reflect the opinion of the CNECT or the European Commission (EC). CNECT or the EC are not responsible for any use that may be made of the information contained therein.


This website will always be ad-free, but our maintenance fees are $70 ~ $80 annually (server fees, domain fees, artwork commissions). Please consider donating to keep our site running ad-free! Even a small one-time donation would be helpful and appreciated. If you'd like to donate, please click the button below!
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If you click on me, I will disappear.
test
doubleClick
jQuery
main story
mouseover
fade
slide
animate
text value
set content
:追加内容:


Introduction¶
PyPackProxy is a caching proxy for Python package indexes (repositories) that conform to PEP 503 (Simple Repository API).
Besides caching files from an external repository PyPackProxy can host customized files for external projects (e.g. wheels created for projects that provide only source packages) or private projects (names must be different from projects in the repository). If the external repository in not available or if PyPackProxy is configured to run without one, all requests from PIP will be served from locally stored projects.
When not using an external package repository (index-url=false
) the package files must be
downloaded manually (e.g. with pip download)
and put in the project directories within the storage-path
directory.
The name of a project directory is the lower-case project name.
See also: Configuration
Web-Interface¶
PyPackProxy provides a simple web-interface. It shows on its startpage a list with all locally stored projects. The names are links to the project pages (if not disabled; see Configuration).
In the administration area new project directories can be created or deleted, files can be uploaded to or deleted from those directories. Admin access can be disabled (see: Configuration).
PIP configuration¶
To use PyPackProxy with PIP use the --index-url
command line argument
or set the index-url
option in pip.conf
. The url must be the base URL of
PyPackProxy with the path /simple
appended, e.g.
https://pypp.example.com:8888/simple
.


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Ever since I can remember I’ve been involved in sports activities, I started playing soccer when I was about 5 years old and kept playing until the end of Highschool (I would say 1/3 of the time I’ve played soccer I was in the center, and 2/3 of the time I was the goalkeeper). I’ve played Football for about 6 seasons, and tried out many positions (I started as an offensive lineman, then became a tightend, after that I played as a wide receiver and in my last season I played as a defensive lineman).
On the last game I had as a Football player I got badly injured on my shoulder. That ended my football career. And while on exchange I broke my knee and got an arthroscopy on it. Ever since then it has been a bit harder to keep playing contact sports but anyways trying out new ways of doing sports is something interesting for me.
Entrepreneurship has been on my veins for a long time now. I love watching TED talks, listening to podcasts like “Entrepreneur on fire” or “School of Greatness” and the books I read are usually about those kind of topics. I think it’s one of those topics that you can never get enough of. Even if you’re someone with a lot of experience there’s always something you haven’t been through.
And that excites me. Possibilities. The fact that each and every one of us is able to leave a footprint in the world makes me want to do stuff. When something I’ve created helps someone do something better it makes it all worth it. All those hours working, all the tough times.
I would also include public speaking over here, I’m looking for courses and opportunities to develop my public speaking skills.
I've found interesting to make movies, short clips. It's something really fresh, I think it all started when I got the opportunity to travel around Europe for 20 days. I wanted to document it all so I made little clips along the way. I've never edited those clips and I wanted to try out making a Vlog, in which I could express the way an entrepreneur feels. That's a project I'll be working in my free time.
There's no way I can't just walk up to a stranger that looks different and not say "Hey what's up?" I believe every single person in the world has something to teach you, I love to ask people about their culture and the way they're feeling in the place they're at. I'm currently learning Chinese in the hopes of one day being able to meet that culture.


CouponCreateOrUpdateEvent
class CouponCreateOrUpdateEvent extends ActionEvent
Occurring when a Coupon is created or updated
Methods
Constructor
No description
No description
No description
No description
No description
No description
Return Coupon code (ex: XMAS)
Return Coupon title (ex: Coupon for XMAS)
Return Coupon short description
Return Coupon description
If Coupon is cumulative or prevent any accumulation If is cumulative you can sum Coupon effects If not cancel all other Coupon and take the last given
If Coupon is removing Checkout Postage
Return effects generated by the coupon
Return Coupon start date
Return Coupon expiration date
If Coupon is available on special offers
Get if Coupon is enabled or not
Return how many time the Coupon can be used again Ex : -1 unlimited
Get Coupon Service id (Type)
Coupon Language code ISO (ex: fr_FR)
Set effects ready to be serialized
Get effects ready to be serialized
Get if the Coupon will be available on special offers or not
Get if the Coupon effect cancel other Coupon effects
Get if Coupon is enabled or not
No description
Set Coupon Model
Return Coupon Model
Get Conditions
Set Conditions
Details
in
ActionEvent at line 30
__set($name, $value)
in
ActionEvent at line 35
__get($name)
in
ActionEvent at line 44
bindForm(
Form $form)
at line 111
__construct(
string $code,
string $serviceId,
string $title,
array $effects,
string $shortDescription,
string $description,
bool $isEnabled,
DateTime $expirationDate,
boolean $isAvailableOnSpecialOffers,
boolean $isCumulative,
boolean $isRemovingPostage,
int $maxUsage,
string $locale,
array $freeShippingForCountries,
array $freeShippingForMethods,
boolean $perCustomerUsageCount,
DateTime $startDate = null)
Constructor
at line 152
setPerCustomerUsageCount(
true $perCustomerUsageCount)
at line 162
true
getPerCustomerUsageCount()
at line 171
$this
setFreeShippingForCountries(
array $freeShippingForCountries)
at line 181
array
getFreeShippingForCountries()
at line 190
$this
setFreeShippingForMethods(
array $freeShippingForMethods)
at line 200
array
getFreeShippingForMethods()
at line 210
string
getCode()
Return Coupon code (ex: XMAS)
at line 220
string
getTitle()
Return Coupon title (ex: Coupon for XMAS)
at line 230
string
getShortDescription()
Return Coupon short description
at line 240
string
getDescription()
Return Coupon description
at line 252
bool
isCumulative()
If Coupon is cumulative or prevent any accumulation If is cumulative you can sum Coupon effects If not cancel all other Coupon and take the last given
at line 262
bool
isRemovingPostage()
If Coupon is removing Checkout Postage
at line 272
float
getAmount()
Return effects generated by the coupon
at line 282
DateTime
getStartDate()
Return Coupon start date
at line 295
DateTime
getExpirationDate()
Return Coupon expiration date
at line 305
boolean
isAvailableOnSpecialOffers()
If Coupon is available on special offers
at line 315
boolean
isEnabled()
Get if Coupon is enabled or not
at line 326
int
getMaxUsage()
Return how many time the Coupon can be used again Ex : -1 unlimited
at line 336
string
getServiceId()
Get Coupon Service id (Type)
at line 346
string
getLocale()
Coupon Language code ISO (ex: fr_FR)
at line 359
setEffects(
array $effects)
Set effects ready to be serialized
at line 372
array
getEffects()
Get effects ready to be serialized
at line 382
boolean
getIsAvailableOnSpecialOffers()
Get if the Coupon will be available on special offers or not
at line 392
boolean
getIsCumulative()
Get if the Coupon effect cancel other Coupon effects
at line 402
boolean
getIsEnabled()
Get if Coupon is enabled or not
at line 410
boolean
getIsRemovingPostage()
at line 422
$this
setCouponModel(
Coupon $couponModel)
Set Coupon Model
at line 434
Coupon
getCouponModel()
Return Coupon Model
at line 444
null|ConditionCollection
getConditions()
Get Conditions
at line 456
$this
setConditions(
ConditionCollection $conditions)
Set Conditions


---
layout: post
title: Pooling framework for Memcached
date: 2011-05-16 14:55:25.000000000 -04:00
type: post
published: true
status: publish
comments: true
categories:
- Coding
- Technology
tags:
- Memcached
- Pooling Memcached
meta:
_edit_last: '1'
_thumbnail_id: '274'
---
Since a long time I wanted a pooling framework for Memcached API, so I decided to build one. Its fairly straight forward to use and modify, you can get the source code from my Git repository.
Following are the steps to get it up and running.
- Import the project in Eclipse
- Add the following jars to the project as they are needed for the project to compile
- commons-logging.jar (http://commons.apache.org/logging/download_logging.cgi)
- commons-pool-1.5.6.jar (http://commons.apache.org/pool/download_pool.cgi)
- junit.jar (http://sourceforge.net/projects/junit/)
- memcached-2.5.jar (http://code.google.com/p/spymemcached/downloads/list)
- I have included JUnit test, just in case !
- The settings to connect to the Membase/Memcache server are in the pooling.properties file (memcached.server)
- Pool size can be set in the same file (memcached.poolObjects)
- API currently implements SET,GET and DELETE methods, feel free to extend it and let me know, I will be more than happy to update the code.
Usage:
private CachingBroker cb = new CachingBroker();
cb.set("key" ,TTL, "value"); // set
cb.get("key"); // get
cb.delete("key"); // delete
Happy Coding
/srm


Source
(defmethod find-or-create-schema-for-object ((table schema-table) object)
;; NOTE: This assumes that the class hasn't changed without the
;; schema table knowing about it. We probably must assume that,
;; otherwise we'd have a very expensive check whenever we want to
;; save an object.
(let ((class (class-of object)))
(or (find-schema-for-class table class)
;; There is no schema yet. Create it.
(let ((persistent-slots (compute-persistent-slot-names class object)))
(create-schema table class 0 persistent-slots)))))
Source Context


London is the capital city of England.
Paris is the capital city of France.
Tokyo is the capital city of Japan.


Skrate
Track your progression, battle your past self in a game of Skate!
You are logged in as
{{ user }}
.
Game Summary
{% include "game.html" %}
New Game
Tricks
{% for trick in tricks %} {% include "trick.html" %} {% endfor %}


Adding new Decorators
Warning
This section requires extensive java skills
A sensor that records metrics can also have a number of ‘decorators’ assigned. Decorators sole purpose are to aggregate and analyse metrics within the sensor recordings to be able to provide deep understanding and analysis across the reviewed code.
Adding a New Decorator
To add a new decorator, you need to do two things
- Implement and compile a java class that extends the Abstract ‘Decorator’ class to perform the operation required
- Add the decorator to a sensor within the configuration XML file
Implementing the Decorator Class
Within the distribution, a sample decorator is provided within the src directory – SampleDecorator.java
You can use this as a template for building additional decorators.
Each new decorator MUST extend the com.softwareag.gcs.wm.codereview.decorators.Decorator
abstract class, and therefore implement the decorate
method as follows:
package com.softwareag.gcs.wm.codereview.decorators;
import java.util.List;
import com.softwareag.gcs.wm.codereview.configuration.bindings.ResultsType;
public class SampleDecorator extends Decorator
{
/**
* Decorate the sensor readings
*/
public void decorate()
{
//Get sensor results
List<ResultsType> results = this.getResults();
//save mesaure as per the sensor
this.saveMeasure("pi", "SampleDecorator", "3.142");
}
}
The decorator class provides a number of useful functions you might need to implement your new decorator, such as retrieving sensor recorded values, and as with the operation additional provided utility classes can be used or added to supplement your decorator functionality.
Building the Decorator Class
An ANT script is available to build any custom operations, sensors or decorators. This can be found within the distribution directory and can be run as follows
ant -f build-custom-classes.xml
This will run the build of any custom operations, sensors and decorators within the src directory The compiled class with be placed within the classes folder and will then be subsequently available to the ISCCR tool.
Note
if you use additional libraries in your custom operation, you’ll need to modify the build-operations ant script to include these, and modify the script that starts the CodeReview to include the additional jar files.
Adding the configuration entries
Next edit the configuration XML that will be used for the code review to include the decorator within the relevant sensor, e.g.
<sensor>
<definition sensorName="SampleSensor" sensorClass="com.softwareag.gcs.wm.codereview.sensors.SampleSensor">
<decorator name="FlowTotals" class="com.softwareag.gcs.wm.codereview.decorators.SummaryTotals"/>
</definition>
</sensor>
11.1.4. Running the Decorator On the next execution of the code review, your decorator will be executed following execution of the sensor.


Please upload all required* files in pdf format,upload only A4
Size, portrait orientation and file
size
should be less
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Preparation time
overnight
Cooking time
over 2 hours
Serves
Serves 10 or more
Perfect summer’s day picnic food. Bake a whole joint and, once it’s cool, wrap up in foil and put the glaze in a jar. Pack it into the hamper along with crusty bread and other snacks.
Drain the gammon joint and weigh it to calculate the cooking time.
Place in a clean pan and cover completely with water. Add the peppercorns, bay leaves, ginger, star anise and half of the cloves. Bring to the boil, then reduce the heat to a simmer. Cook the joint for 25 minutes per 450g/1lb. (A 2.5kg joint will take 2 hours 20 minutes.)
Thirty minutes before the joint is ready, preheat the oven to 220C/425F/Gas 7. Mix all of the glaze ingredients in a small pan and heat gently until the sugar is dissolved, then simmer for 25 minutes, or until the glaze is reduced and thickened.
Remove the joint from the water and pat dry with kitchen paper. (Keep the cooking liquid to make a delicious soup.) Remove the thick layer of skin, but not the fat, from the joint. (This can be quite fiddly and often comes off in bits rather than in one large piece.) Use a small, sharp knife to score the meat diagonally, then change direction and score the other way to form diamonds. Stick the remaining cloves into the holes where the lines cross, then pour the glaze over the meat.
Put the joint in the oven and cook for 20–30 minutes, or until the top begins to brown. It can catch easily at this point because of the honey, so keep a close eye on it! Once the joint is cooked, remove from the oven and cover loosely with baking paper to allow it to ‘rest’. This evens out the temperature and makes the meat more juicy.


Projects
Anthony on his web development journey. Creates living, breathing documents, that every day folks can interact with. Spent a great deal of time honing on his craft, enjoys aiding folks within the tech community with their open source projects.
Gamification - been wholly fascinated by how, infusing video gaming elements within user-flow. Compels users to gain more information per interaction, and makes for a more intuitive experience.


This experiment looks at how music can influence your emotional state, through on-body sensors and self-report questionnaires. The experiment will last approximately 12 minutes. If you have any questions please ask a member of the staff or contact the researchers at the email address provided below.
By clicking the 'Continue' button below you agree to participate in this experiment, that this agreement is of your own free will and that you have had the opportunity to ask any questions you may have about this study.
You may also quit the experiment at any time by clicking the 'Emotion in Motion' link at the top-left corner of the screen.
Any personal information provided by you will be kept strictly confidential and you will not be personally identifiable by any information provided.
Should you require any further information please contact the researchers conduction this experiment (Benjamin Knapp, Javier Jaimovich, and Brennon Bortz) at<EMAIL_ADDRESS>If you have any questions regarding your rights as a human research participant, please contact Dr. David Moore at Virginia Polytechnic Institute and State University's Institutional Review Board at<EMAIL_ADDRESS>If you consent to the above terms, click 'Continue'. Otherwise, click 'Cancel Experiment'.


Deploy your app on Docker for Azure
Estimated reading time: 6 minutesConnecting to your manager nodes using SSH
This section walks you through connecting to your installation and deploying applications.
First, you obtain the public IP address for a manager node. Any manager node can be used for administrating the swarm.
Manager Public IP and SSH ports on Azure
Once you’ve deployed Docker on Azure, go to the “Outputs” section of the resource group deployment.
The “SSH Targets” output is a URL to a blade that describes the IP address (common across all the manager nodes) and the SSH port (unique for each manager node) that you can use to log in to each manager node.
Obtain the public IP and/or port for the manager node as instructed above and use the provided SSH key to begin administrating your swarm and the unique port associated with a manager:
$ ssh -i <path-to-ssh-key> -p <ssh-port> docker@<ip>
Welcome to Docker!
Once you are logged into the container you can run Docker commands on the swarm:
$ docker info
$ docker node ls
You can also tunnel the Docker socket over SSH to remotely run commands on the cluster (requires OpenSSH 6.7 or later):
$ ssh -i <path-to-ssh-key> -p <ssh-port> -fNL localhost:2374:/var/run/docker.sock docker@<ssh-host>
$ docker -H localhost:2374 info
If you don’t want to pass -H
when using the tunnel, you can set the DOCKER_HOST
environment variable to point to the localhost tunnel opening.
Connecting to your Linux worker nodes using SSH
The Linux worker nodes have SSH enabled. SSH access is not possible to the worker nodes from the public
Internet directly. To access the worker nodes, you need to first connect to a
manager node (see above) and then ssh
to the worker node, over the private
network. Make sure you have SSH agent forwarding enabled (see below). If you run
the docker node ls
command you can see the full list of nodes in your swarm.
You can then ssh docker@<worker-host>
to get access to that node.
Configuring SSH agent forwarding
SSH agent forwarding allows you to forward along your ssh keys when connecting from one node to another. This eliminates the need for installing your private key on all nodes you might want to connect from.
You can use this feature to SSH into worker nodes from a manager node without installing keys directly on the manager.
If your haven’t added your ssh key to the ssh-agent
you also need to do this first.
To see the keys in the agent already, run:
$ ssh-add -L
If you don’t see your key, add it like this.
$ ssh-add ~/.ssh/your_key
On Mac OS X, the ssh-agent
forgets this key, once it gets restarted. But you can import your SSH key into your Keychain like this so your key can survive restarts.
$ ssh-add -K ~/.ssh/your_key
You can then enable SSH forwarding per-session using the -A
flag for the ssh command.
Connecting to the Manager.
$ ssh -A docker@<manager ip>
To always have it turned on for a given host, you can edit your ssh config file
(/etc/ssh_config
, ~/.ssh/config
, etc) to add the ForwardAgent yes
option.
Example configuration:
Host manager0
HostName <manager ip>
ForwardAgent yes
To SSH in to the manager with the above settings:
$ ssh docker@manager0
Connecting to your Windows worker nodes using RDP
The Windows worker nodes have RDP enabled. RDP access is not possible to the worker nodes from the public
Internet. To access the worker nodes using RDP, you need to first connect to a
manager node (see above) over ssh
, establish a SSH tunnel and then use RDP to connect to the worker node over the SSH tunnel.
To get started, first login to a manager node and determine the private IP address of the Windows worker VM:
$ docker node inspect <windows-worker-node-id> | jq -r ".[0].Status.Addr"
Next, in your local machine, establish the SSH tunnel to the manager for the RDP connection to the worker. The local port can be any free port and typically a high value, such as 9001.
$ ssh -L <local-port>:<windows-worker-ip>:3389 -p <manager-ssh-port> docker@<manager-ip>
Finally you can use a RDP client on your local machine to connect to local-host
:local-port
and the connection is forwarded to the RDP server running in the Windows worker node over the SSH tunnel created above.
Running apps
You can now start creating containers and services.
$ docker run hello-world
You can run websites too. Ports exposed with --publish
are automatically exposed through the platform load balancer:
$ docker service create --name nginx --publish published=80,target=80 nginx
Once up, find the DefaultDNSTarget
output in either the AWS or Azure portals to access the site.
Execute docker commands in all swarm nodes
There are cases (such as installing a volume plugin) wherein a docker command may need to be executed in all the nodes across the cluster. You can use the swarm-exec
tool to achieve that.
Usage : swarm-exec {Docker command}
The following installs a test plugin in all the nodes in the cluster.
Example : swarm-exec docker plugin install --grant-all-permissions mavenugo/test-docker-netplugin
This tool internally makes use of docker global-mode service that runs a task on each of the nodes in the cluster. This task in turn executes your docker command. The global-mode service also guarantees that when a new node is added to the cluster or during upgrades, a new task is executed on that node and hence the docker command is automatically executed.
Docker Stack deployment
To deploy complex multi-container apps, you can use the docker stack deploy command. You can either deploy a bundle on your machine over an SSH tunnel, or copy the docker-compose.yml file to a manager node via scp for example. You can then SSH into the manager node and run docker stack deploy with the --compose-file or -c option. See docker stack deploy options for the list of different options. If you have multiple manager nodes, make sure you are logged in to the one with the stack file copy.
For example:
docker stack deploy --compose-file docker-compose.yml myapp
See Docker voting app for a good sample app to test stack deployments.
By default, apps deployed with stacks do not have ports publicly exposed. Update port mappings for services, and Docker automatically wires up the underlying platform load balancers:
docker service update --publish-add published=80,target=80 <example-service>
Images in private repos
To create swarm services using images in private repos, first make sure you’re authenticated and have access to the private repo, then create the service with the --with-registry-auth
flag (the example below assumes you’re using Docker Hub):
docker login
...
docker service create --with-registry-auth user/private-repo
...
This causes swarm to cache and use the cached registry credentials when creating containers for the service.
azure, microsoft, iaas, deploy


Challenging launches. Product supply visibility. Prioritizing design reviews, market feedback, the project burn rate, and developing compelling value propositions. For recent MBAs, the role of the Product Manager can be very attractive – the opportunity to think about a product’s success from end to end, and (if successful) the excitement of seeing users appreciating in and engaging with your hard work.
Another reason for this buzz is the variation and uncertainty between companies as to what “Product” represents. PM roles change based on company needs, culture, size, and even values. PMs may come into a company with a “Product Manager” title, but find themselves doing more complimentary roles that are generally defined as a “Program Manager”, “Project Coordinator”, or “Product Marketing Manager.”
Having had these discussions with colleagues and having been a part of the Product Management function for two companies, I have seen how misaligned expectations for responsibilities can create winners and losers – for both the organization and an individual’s career progress. I decided to research if there were any patterns that highlight how “Product” is successfully grown within a company, and how the function evolves as an organization scales.
Throughout Fall 2014, I conducted interviews to learn about the PM function at 11 different US technology companies. The full sample needed to represent a breadth of sizes and growth stages (our sample has current sizes from ~30 to ~1,000) and meet 2 of 3 criteria: have an analytic or “data product” capability, have a hardware component and team, and have the primary value delivered through software. The interviewee needed to have direct experience with their organization’s “Product” activities.
In having these conversations, three key considerations emerged for how to balance Product success and Product Manager expectations:
- Is there a practical framework for thinking about Product Management (PM) talent? (Answer, yes.)
- How might a CEO or HR executive think about matching PM talent to a company’s needs?
- How can a Product Manager enter a new organization and quickly establish effectiveness?
This article will explore the second question here; the first and third question can be found in separate posts.
##Company fit precedes product-market fit. “Every organization is a unique organism. There are principles that can be applied, but the needs of the organization that evolve over time is hard to generalize.” – Director of Innovation, Multibillion Medical Device Company
For any CEO or HR executive that is hiring (or for a PM looking for a new position), a great place to start when shaping a new PM role is to think about the organizational structure – where a Product function would fit, and how the structure might change over time, if at all. Similar to how new businesses will prototype and iterate on their products, companies can practice different styles and organizational structures to make the most effective use of their resources against organizational risk.
The organizational structure in itself is an insightful tool – it highlights what the company feels are a combination of its most important and most disparate activities. The goal of an organizational structure is to minimize managerial and bureaucratic layers while trying to effectively coordinate between strategy development and execution. As a result, the functions within an organization, and the sub-functions and responsibilities within Product (if it exists), can be telling.
As an example, the Product Manager responsibilities in a startup are different than in a larger organization. Early in a company’s life, founders will hire for generalists – whose roles will center around coordination activities – and the team dynamic will be highly matrixed. As the company grows, sustained profit streams develop and specialization takes place: creating more focused roles and differentiated types of responsibility and management needs. The same person would not (necessarily) make sense in either role.
When thinking about developing these job descriptions, it is helpful to consider three “ASKS”:
- ASK: Functionally, what does the company value? In a Lightweight PM? In a Heavyweight PM?
- ASK: How can we build trust, and communicate that it is an ongoing process?
- ASK: What relationships do we want to establish throughout the organization? Will that change over time?
####ASK: Functionally, what does the company value? In a Lightweight PM? In a Heavyweight PM?
The distribution of decision-making (and the areas in which this can take place) will be a function of the CEO’s perception of his or her role in the team. This can lead to different representations of “Product Manager” responsibilities, and can help executives and new PMs gauge the potential growth they can achieve within any given company.
For example, some companies will have Product Managers, but no Product function. In these situations, Product Managers are a horizontal capability, and are placed in the HW, Engineering, or Operations teams. These are Lightweight PMs – they act primarily in a coordinating function, integrating hardware, software, and mobile applications. These roles will seldom result in the opportunities required to migrate to a Heavyweight-type role.
In another situation, the design-oriented CEO of a consumer technology company was adamant about owning the UX/UI of the company’s first product – and retained these decisions from the company’s first PMs (who were “Lightweight” in nature). But when the CEO was ready to hire a new Director of Product Management, he looked for someone with the design capabilities that he personally valued. Here, Lightweight and Heavyweight PMs were asked to hold different roles within the team.
####ASK: How can we build trust, and communicate that it is an ongoing process?
It is important to set an early goal for PM responsibilities and a hypothesis for a successful Executive Team/Product Manager dynamic. Many PMs may hope to be the executor of a set vision, and to double as a strategic advisor and thought partner to leadership. Executive teams likely have the same desire – at the same time, it is important to consider that trust is something that is built over time, and to develop a plan that allows for that to occur.
One strategy for setting a dynamic early is to have all new hires enter as contractors. This way, there are clear objectives to perform and a structured opportunity to part ways if it does not work out. One company we spoke with mentioned, “Many of the good full time contractors we have ended up being full time in the long run. Some have worked on specific problems. Some have worked on contract and left.”
Another strategy can be to outline a few “quick wins” for the PM and the organization. In small and growing companies, there is generally a lot of opportunity for improved coordination and knowledge capture. Coordination challenges are a large reason for early PM (Lightweight) hires. One company mentioned: “We hired a PM at around 80 FT and 110 contracted folks. With the number of contracts we hired, we knew we needed someone to manage this.”
Early PMs can establish a reputation as a focal-point for company activities, and organize the work in a way that builds long-term assets. Helping the existing team feel like it is more productive, successful, and building a foundation for the future sets a tone for the trust required to work through challenging projects. Knowing the benefit of this perception, it is also important for the leadership team to create the environment that allows for PM success.
####ASK: What relationships do we want to establish throughout the organization? Will that change over time?
Both Lightweight and Heavyweight positions are exercises in soft influence: PMs will take time and resources from Engineering, Design, and Marketing teams, but will not have a “direct-line” reporting relationships with their team members. As a result, PMs can obtain influence through motivation. Another way (which can be supported by the leadership team) is to give the PM ownership for the product vision. Two considerations when establishing this are to:
- Understand the flexibility the leadership team has in the corporate vision
- Articulate the relationship of the PM and the leadership team in managing “holistic risk”
Current space startups have very clear technical visions – two popular examples are “to colonize Mars” or “to democratize satellite imagery” – which provide much agency in product development. These visions give more autonomy to their organization’s Product teams early – once there is confidence in the roadmap. For companies in which the path for execution is less clear or uncertain, navigating this risk may be too great or personally uncomfortable for leadership to pass to a PM, and a more “Lightweight” role may be appropriate.
Product Managers and senior leadership should learn how they perceive the “holistic risk” of the business and use this measure to prioritize and shape projects for the company. As a CEO (or “CEO substitute”), there is both functional risk and orthogonal risk – that is, the ability to appropriately identify and prioritize risk across competencies. Executives and PMs should understand how, together, they can mitigate this to increase the probability of a project’s success.


WYMeditor is a web-based WYSIWYM XHTML editor.
WYMeditor's main concept is to leave details of the document's visual layout, and to concentrate on its structure and meaning, while trying to give the user as much comfort as possible (at least as WYSIWYG editors).
WYMeditor has been created to generate perfectly structured XHTML strict code, to conform to the W3C XHTML specifications and to facilitate further processing by modern applications.
With WYMeditor, the code can't be contaminated by visual informations like font styles
and weights, borders, colors, ...
The end-user defines content meaning, which will determine its aspect by the use of style
sheets. The result is easy and quick maintenance of information.
As the code is compliant to W3C XHTML specifications, you can for example process it using a XSLT (at the client or the server side), giving you a wide range of applications.
WYMeditor brings a new approach and a set of simple solutions which allow for a very easy to use editor, while still producing clean XHTML code. Thanks to its original approach it remains clear and easy to learn. A one-hour training and it's the beginning of clean updates made by the end user.
WYMeditor is Free/Open Source Software, which means anyone can use it and contribute. It also means community support is important to make it a really solid and long-lasting project.
WYMeditor is dual licensed under the Open Source MIT and GPL licenses.


2019-04-17 The ever living poll, tokens, reputation 2.0, and envisioning community diagnostics steemit
2018-01-03 Can we pause for half a second and say congrats and thanks to Steemit? We're breaking multiple records right now! steemit
2017-11-12 Steemit and Minnow Support Project Orientation by @aggroed live in 8 hours on mspwaves steemit
2017-09-24 @aggroed interviews Steemit's hightech wizard @gtg aka @gandalf about the future and stability of the Steemit Blockchain. steemit
2017-05-22 STEEMIT TIPS- Write as though you're gifting the words! (Closing in on 700 followers! ~250 new ones this week!) steemit
2017-05-21 STEEMIT TIPS- You can make a lot of money by reading other people's posts. Closing in on 700 followers! steemit
2016-09-19 Using STEEMIT to build a youtube following in short order: How I got 222,000 views on youtube from a fresh account in 14 days steemit
2016-09-09 Satirically Yours S1E5- Successful Steemer says "posts unchanged by success" as they upload another cat photo steemit
2016-09-08 Can someone explain why there are so many accounts with no posts but hundreds of followers? steemit
2016-09-06 An important reminder from STEEMIT: Your opinion isn't worth shit unless you're already rich. steemit


Hallelujah (1929)
Grade: 82
"Hallelujah" was the first film from a major studio with an all-black cast. Perhaps we should be grateful that "Hallelujah" exists, rather than resentful that racism prevented the production of other films like it. But at least we have "Hallelujah", which is more dynamic, fascinating and unique than most of the other musicals from the early sound era.
Daniel Haynes stars as Zeke, who, along with his large family, makes a marginal living as a cotton picker. Come harvest time, Zeke gets paid for his crop, but he promptly loses it to a pair of con artists (William Fontaine and femme fatale Nina Mae McKinney). His brother is also killed. In his despair, Zeke is born again, and becomes a spellbinding preacher. But his family's new-found success is again threatened by Zeke's maddening passion for McKinney.
The soundtrack for "Hallelujah" is excellent. The nightclub scenes have vintage jazz performances. There are also spirituals, folk songs, and lullabies. Haynes has a resonant bass voice, reminiscent of Paul Robeson. Essentially, "Hallelujah" was filmed as a silent, with the soundtrack later dubbed in. That, along with cultural reasons and amateur actors, may account for the exaggerated performances. Distribution of the film proved more problematic, as some theatre owners had fears that 'too many' blacks would see the film, alienating white audiences.
King Vidor, a successful Texas-born director with a Hollywood career spanning five decades, also produced "Hallelujah". His efforts were rewarded with an Oscar nomination for Best Director.
<EMAIL_ADDRESS>http://members.tripod.com/~Brian_Koller/movies.html
The review above was posted to the
rec.arts.movies.reviews newsgroup (de.rec.film.kritiken for German reviews).
The Internet Movie Database accepts no responsibility for the contents of the
review and has no editorial control. Unless stated otherwise, the copyright
belongs to the author.
Please direct comments/criticisms of the review to relevant newsgroups.
Broken URLs inthe reviews are the responsibility of the author.
The formatting of the review is likely to differ from the original due
to ASCII to HTML conversion.
Related links: index of all rec.arts.movies.reviews reviews


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module Const: Owl_const
The SI system of units extends the MKS system and has 7 base units, by expressing any measurement of physical quantities using fundamental units of Length, Mass, Time, Electric Current, Thermodynamic Temperature, Amount of substance and Luminous Intensity, which are Metre, Kilogram, Second, Ampere, Kelvin, Mole and Candela respectively.
http://www.npl.co.uk/upload/pdf/units-of-measurement-poster.pdf
module SI:sig
..end
module Prefix:sig
..end
module MKS:sig
..end
module CGS:sig
..end
module CGSM:sig
..end