A DataSource that loads data from a 'zoneinfo' directory containing compiled “TZif” version 3 (or earlier) files in addition to iso3166.tab and zone1970.tab or zone.tab index files.
To have TZInfo load the system zoneinfo files, call TZInfo::DataSource.set as follows:
TZInfo::DataSource.set(:zoneinfo)
To load zoneinfo files from a particular directory, pass the directory to TZInfo::DataSource.set:
TZInfo::DataSource.set(:zoneinfo, directory)
Note that the platform used at runtime may limit the range of available transition data that can be loaded from zoneinfo files. There are two factors to consider:
First of all, the zoneinfo support in TZInfo makes use of Ruby's Time class. On 32-bit builds of Ruby 1.8, the Time class only supports 32-bit timestamps. This means that only Times between 1901-12-13 20:45:52 and 2038-01-19 03:14:07 can be represented. Furthermore, certain platforms only allow for positive 32-bit timestamps (notably Windows), making the earliest representable time 1970-01-01 00:00:00.
64-bit builds of Ruby 1.8 and all builds of Ruby 1.9 support 64-bit timestamps. This means that there is no practical restriction on the range of the Time class on these platforms.
TZInfo will only load transitions that fall within the supported range of the Time class. Any queries performed on times outside of this range may give inaccurate results.
The second factor concerns the zoneinfo files. Versions of the 'zic' tool (used to build zoneinfo files) that were released prior to February 2006 created zoneinfo files that used 32-bit integers for transition timestamps. Later versions of zic produce zoneinfo files that use 64-bit integers. If you have 32-bit zoneinfo files on your system, then any queries falling outside of the range 1901-12-13 20:45:52 to 2038-01-19 03:14:07 may be inaccurate.
Most modern platforms include 64-bit zoneinfo files. However, Mac OS X (up to at least 10.8.4) still uses 32-bit zoneinfo files.
To check whether your zoneinfo files contain 32-bit or 64-bit transition data, you can run the following code (substituting the identifier of the zone you want to test for zone_identifier):
TZInfo::DataSource.set(:zoneinfo) dir = TZInfo::DataSource.get.zoneinfo_dir File.open(File.join(dir, zone_identifier), 'r') {|f| f.read(5) }
If the last line returns “TZif\x00”, then you have a 32-bit zoneinfo file. If it returns “TZif2” or “TZif3” then you have a 64-bit zoneinfo file.
If you require support for 64-bit transitions, but are restricted to 32-bit zoneinfo support, then you may want to consider using TZInfo::RubyDataSource instead.
The default value of ::alternate_iso3166_tab_search_path.
The default value of ::search_path.
The zoneinfo directory being used.
An Array of paths that will be checked to find an alternate iso3166.tab file if one was not included in the zoneinfo directory (for example, on FreeBSD and OpenBSD systems).
Paths are checked in the order they appear in the array.
The default value is ['/usr/share/misc/iso3166.tab', '/usr/share/misc/iso3166'].
# File lib/tzinfo/zoneinfo_data_source.rb, line 119 def self.alternate_iso3166_tab_search_path @@alternate_iso3166_tab_search_path end
Sets the paths to check to locate an alternate iso3166.tab file if one was not included in the zoneinfo directory.
Can be set to an Array of directories or a String containing directories separated with File::PATH_SEPARATOR.
Paths are checked in the order they appear in the array.
Set to nil to revert to the default paths.
# File lib/tzinfo/zoneinfo_data_source.rb, line 132 def self.alternate_iso3166_tab_search_path=(alternate_iso3166_tab_search_path) @@alternate_iso3166_tab_search_path = process_search_path(alternate_iso3166_tab_search_path, DEFAULT_ALTERNATE_ISO3166_TAB_SEARCH_PATH) end
Creates a new ZoneinfoDataSource.
If #zoneinfo_dir is specified, it will be checked and used as the source of zoneinfo files.
The directory must contain a file named iso3166.tab and a file named either zone1970.tab or zone.tab. These may either be included in the root of the directory or in a 'tab' sub-directory and named 'country.tab' and 'zone_sun.tab' respectively (as is the case on Solaris.
Additionally, the path to iso3166.tab can be overridden using the alternate_iso3166_tab_path parameter.
InvalidZoneinfoDirectory will be raised if the iso3166.tab and zone1970.tab or zone.tab files cannot be found using the #zoneinfo_dir and alternate_iso3166_tab_path parameters.
If #zoneinfo_dir is not specified or nil, the paths referenced in ::search_path are searched in order to find a valid zoneinfo directory (one that contains zone1970.tab or zone.tab and iso3166.tab files as above).
The paths referenced in ::alternate_iso3166_tab_search_path are also searched to find an iso3166.tab file if one of the searched zoneinfo directories doesn't contain an iso3166.tab file.
If no valid directory can be found by searching, ZoneinfoDirectoryNotFound will be raised.
# File lib/tzinfo/zoneinfo_data_source.rb, line 167 def initialize(zoneinfo_dir = nil, alternate_iso3166_tab_path = nil) if zoneinfo_dir iso3166_tab_path, zone_tab_path = validate_zoneinfo_dir(zoneinfo_dir, alternate_iso3166_tab_path) unless iso3166_tab_path && zone_tab_path raise InvalidZoneinfoDirectory, "#{zoneinfo_dir} is not a directory or doesn't contain a iso3166.tab file and a zone1970.tab or zone.tab file." end @zoneinfo_dir = zoneinfo_dir else @zoneinfo_dir, iso3166_tab_path, zone_tab_path = find_zoneinfo_dir unless @zoneinfo_dir && iso3166_tab_path && zone_tab_path raise ZoneinfoDirectoryNotFound, "None of the paths included in TZInfo::ZoneinfoDataSource.search_path are valid zoneinfo directories." end end @zoneinfo_dir = File.expand_path(@zoneinfo_dir).freeze @timezone_index = load_timezone_index.freeze @country_index = load_country_index(iso3166_tab_path, zone_tab_path).freeze end
An Array of directories that will be checked to find the system zoneinfo directory.
Directories are checked in the order they appear in the Array.
The default value is ['/usr/share/zoneinfo', '/usr/share/lib/zoneinfo', '/etc/zoneinfo'].
# File lib/tzinfo/zoneinfo_data_source.rb, line 95 def self.search_path @@search_path end
Sets the directories to be checked when locating the system zoneinfo directory.
Can be set to an Array of directories or a String containing directories separated with File::PATH_SEPARATOR.
Directories are checked in the order they appear in the Array or String.
Set to nil to revert to the default paths.
# File lib/tzinfo/zoneinfo_data_source.rb, line 108 def self.search_path=(search_path) @@search_path = process_search_path(search_path, DEFAULT_SEARCH_PATH) end
Processes a path for use as the ::search_path or alternate_iso3166_tab_search_path.
# File lib/tzinfo/zoneinfo_data_source.rb, line 268 def self.process_search_path(path, default) if path if path.kind_of?(String) path.split(File::PATH_SEPARATOR) else path.collect {|p| p.to_s} end else default.dup end end
Returns an array of all the available ISO 3166-1 alpha-2 country codes.
# File lib/tzinfo/zoneinfo_data_source.rb, line 250 def country_codes @country_index.keys.freeze end
Returns an array of all the available timezone identifiers for data timezones (i.e. those that actually contain definitions).
For ZoneinfoDataSource, this will always be identical to timezone_identifers.
# File lib/tzinfo/zoneinfo_data_source.rb, line 227 def data_timezone_identifiers @timezone_index end
Returns internal object state as a programmer-readable string.
# File lib/tzinfo/zoneinfo_data_source.rb, line 260 def inspect "#<#{self.class}: #{@zoneinfo_dir}>" end
Returns an array of all the available timezone identifiers that are links to other timezones.
For ZoneinfoDataSource, this will always be an empty array.
# File lib/tzinfo/zoneinfo_data_source.rb, line 235 def linked_timezone_identifiers [].freeze end
Returns a CountryInfo instance for the given ISO 3166-1 alpha-2 country code. Raises InvalidCountryCode if the country could not be found or the code is invalid.
# File lib/tzinfo/zoneinfo_data_source.rb, line 242 def load_country_info(code) info = @country_index[code] raise InvalidCountryCode, 'Invalid country code' unless info info end
Returns a TimezoneInfo instance for a given identifier. Raises InvalidTimezoneIdentifier if the timezone is not found or the identifier is invalid.
# File lib/tzinfo/zoneinfo_data_source.rb, line 192 def load_timezone_info(identifier) begin if @timezone_index.include?(identifier) path = File.join(@zoneinfo_dir, identifier) # Untaint path rather than identifier. We don't want to modify # identifier. identifier may also be frozen and therefore cannot be # untainted. path.untaint begin ZoneinfoTimezoneInfo.new(identifier, path) rescue InvalidZoneinfoFile => e raise InvalidTimezoneIdentifier, e.message end else raise InvalidTimezoneIdentifier, 'Invalid identifier' end rescue Errno::ENOENT, Errno::ENAMETOOLONG, Errno::ENOTDIR raise InvalidTimezoneIdentifier, 'Invalid identifier' rescue Errno::EACCES => e raise InvalidTimezoneIdentifier, e.message end end
Returns an array of all the available timezone identifiers.
# File lib/tzinfo/zoneinfo_data_source.rb, line 218 def timezone_identifiers @timezone_index end
Returns the name and information about this DataSource.
# File lib/tzinfo/zoneinfo_data_source.rb, line 255 def to_s "Zoneinfo DataSource: #{@zoneinfo_dir}" end
Converts degrees, minutes and seconds to a Rational.
# File lib/tzinfo/zoneinfo_data_source.rb, line 480 def dms_to_rational(sign, degrees, minutes, seconds = nil) result = degrees.to_i + Rational(minutes.to_i, 60) result += Rational(seconds.to_i, 3600) if seconds result = -result if sign == '-' result end
Recursively scans a directory of timezones, calling the passed in block for each identifier found.
# File lib/tzinfo/zoneinfo_data_source.rb, line 363 def enum_timezones(dir, exclude = [], &block) Dir.foreach(dir ? File.join(@zoneinfo_dir, dir) : @zoneinfo_dir) do |entry| unless entry =~ /\./ || exclude.include?(entry) entry.untaint path = dir ? File.join(dir, entry) : entry full_path = File.join(@zoneinfo_dir, path) if File.directory?(full_path) enum_timezones(path, [], &block) elsif File.file?(full_path) yield path end end end end
Finds a zoneinfo directory using ::search_path and alternate_iso3166_tab_search_path. Returns the paths to the directory, the iso3166.tab file and the zone.tab file or nil if not found.
# File lib/tzinfo/zoneinfo_data_source.rb, line 322 def find_zoneinfo_dir alternate_iso3166_tab_path = self.class.alternate_iso3166_tab_search_path.detect do |path| File.file?(path) end self.class.search_path.each do |path| # Try without the alternate_iso3166_tab_path first. iso3166_tab_path, zone_tab_path = validate_zoneinfo_dir(path) return path, iso3166_tab_path, zone_tab_path if iso3166_tab_path && zone_tab_path if alternate_iso3166_tab_path iso3166_tab_path, zone_tab_path = validate_zoneinfo_dir(path, alternate_iso3166_tab_path) return path, iso3166_tab_path, zone_tab_path if iso3166_tab_path && zone_tab_path end end # Not found. nil end
Uses the iso3166.tab and zone1970.tab or zone.tab files to build an index of the available countries and their timezones.
# File lib/tzinfo/zoneinfo_data_source.rb, line 381 def load_country_index(iso3166_tab_path, zone_tab_path) # Handle standard 3 to 4 column zone.tab files as well as the 4 to 5 # column format used by Solaris. # # On Solaris, an extra column before the comment gives an optional # linked/alternate timezone identifier (or '-' if not set). # # Additionally, there is a section at the end of the file for timezones # covering regions. These are given lower-case "country" codes. The timezone # identifier column refers to a continent instead of an identifier. These # lines will be ignored by TZInfo. # # Since the last column is optional in both formats, testing for the # Solaris format is done in two passes. The first pass identifies if there # are any lines using 5 columns. # The first column is allowed to be a comma separated list of country # codes, as used in zone1970.tab (introduced in tzdata 2014f). # # The first country code in the comma-separated list is the country that # contains the city the zone identifer is based on. The first country # code on each line is considered to be primary with the others # secondary. # # The zones for each country are ordered primary first, then secondary. # Within the primary and secondary groups, the zones are ordered by their # order in the file. file_is_5_column = false zone_tab = [] RubyCoreSupport.open_file(zone_tab_path, 'r', :external_encoding => 'UTF-8', :internal_encoding => 'UTF-8') do |file| file.each_line do |line| line.chomp! if line =~ /\A([A-Z]{2}(?:,[A-Z]{2})*)\t(?:([+\-])(\d{2})(\d{2})([+\-])(\d{3})(\d{2})|([+\-])(\d{2})(\d{2})(\d{2})([+\-])(\d{3})(\d{2})(\d{2}))\t([^\t]+)(?:\t([^\t]+))?(?:\t([^\t]+))?\z/ codes = $1 if $2 latitude = dms_to_rational($2, $3, $4) longitude = dms_to_rational($5, $6, $7) else latitude = dms_to_rational($8, $9, $10, $11) longitude = dms_to_rational($12, $13, $14, $15) end zone_identifier = $16 column4 = $17 column5 = $18 file_is_5_column = true if column5 zone_tab << [codes.split(','), zone_identifier, latitude, longitude, column4, column5] end end end primary_zones = {} secondary_zones = {} zone_tab.each do |codes, zone_identifier, latitude, longitude, column4, column5| description = file_is_5_column ? column5 : column4 country_timezone = CountryTimezone.new(zone_identifier, latitude, longitude, description) # codes will always have at least one element (primary_zones[codes.first] ||= []) << country_timezone codes[1..-1].each do |code| (secondary_zones[code] ||= []) << country_timezone end end countries = {} RubyCoreSupport.open_file(iso3166_tab_path, 'r', :external_encoding => 'UTF-8', :internal_encoding => 'UTF-8') do |file| file.each_line do |line| line.chomp! # Handle both the two column alpha-2 and name format used in the tz # database as well as the 4 column alpha-2, alpha-3, numeric-3 and # name format used by FreeBSD and OpenBSD. if line =~ /\A([A-Z]{2})(?:\t[A-Z]{3}\t[0-9]{3})?\t(.+)\z/ code = $1 name = $2 zones = (primary_zones[code] || []) + (secondary_zones[code] || []) countries[code] = ZoneinfoCountryInfo.new(code, name, zones) end end end countries end
Scans @zoneinfo_dir and returns an Array of available timezone identifiers.
# File lib/tzinfo/zoneinfo_data_source.rb, line 344 def load_timezone_index index = [] # Ignoring particular files: # +VERSION is included on Mac OS X. # localtime current local timezone (may be a link). # posix, posixrules and right are directories containing other versions of the zoneinfo files. # src is a directory containing the tzdata source included on Solaris. # Factory is the compiled in default timezone. enum_timezones(nil, ['+VERSION', 'localtime', 'posix', 'posixrules', 'right', 'src', 'Factory']) do |identifier| index << identifier end index.sort end
Attempts to resolve the path to a tab file given its standard names and tab sub-directory name (as used on Solaris).
# File lib/tzinfo/zoneinfo_data_source.rb, line 307 def resolve_tab_path(zoneinfo_path, standard_names, tab_name) standard_names.each do |standard_name| path = File.join(zoneinfo_path, standard_name) return path if File.file?(path) end path = File.join(zoneinfo_path, 'tab', tab_name) return path if File.file?(path) nil end
Validates a zoneinfo directory and returns the paths to the iso3166.tab and zone1970.tab or zone.tab files if valid. If the directory is not valid, returns nil.
The path to the iso3166.tab file may be overriden by passing in a path. This is treated as either absolute or relative to the current working directory.
# File lib/tzinfo/zoneinfo_data_source.rb, line 287 def validate_zoneinfo_dir(path, iso3166_tab_path = nil) if File.directory?(path) if iso3166_tab_path return nil unless File.file?(iso3166_tab_path) else iso3166_tab_path = resolve_tab_path(path, ['iso3166.tab'], 'country.tab') return nil unless iso3166_tab_path end zone_tab_path = resolve_tab_path(path, ['zone1970.tab', 'zone.tab'], 'zone_sun.tab') return nil unless zone_tab_path [iso3166_tab_path, zone_tab_path] else nil end end


Hello Guys! I wanted to link a video to this page as my enhancement
If you would like to save this page do Ctrl + s
My Email is
Hello guys, my name is Burhan Khan. I went to Joliet Junior College for 2 years and got my Associates Degree in cybersecurity. My major here at Lewis University is also cybersecurity. This is a feild that interests me alot. I look forward to the next 2 years and am exicted to challenge myself. I like to play video games in my free time, or study material realted to computer networking, hardware, secuity, and software. I have never really programmed before so learning whatever we have learned so far in the course has been fun and a great learning experience.
My favoirite hobby is learning about computers. I like to work with different hardware firewalls and networking equipment. I have bought actual hardware firewalls from Netgate which is an open soruce firewall company. I have purchased Unifi access points from Ubiqiuti. I like to work with different euipment to create labs at home. I like to learn about networking concepts such vlans and Quality Of Service to optimize networks. Anything to do with computers, and networking is fasncating to me
Some fun facts about me are


Given the recent advances in wearable technologies, there exists a new opportunity to monitor and give feedback to athletes needing optimized training sessions. These new wave of devices provide the possibility to give personalized feedback during and after the athlete's workout. Most people are interested in how much of a particular activity they do, but athlete's care more about how well they do it for optimal training. In this project, the data from accelerometers on the belt, forearm, arm, and dumbell of 6 participants is used to grade the quality of the workout form. The participants were asked to perform barbell lifts correctly and incorrectly in 5 different ways. These are broken down into 5 classes, with A being ideal:
More information around the training set can be found here: http://groupware.les.inf.puc-rio.br/har.
The model for this project was built using R's randomForest
package. I made the decision to use Random Forests because they are flexible and quick to train. The model is built by:
# Partition training set
trainingPartition <- createDataPartition(y = trainingProcessed$classe, p = trainTestRatio, list = FALSE)
training <- trainingProcessed[trainingPartition,]
testing <- trainingProcessed[-trainingPartition,]
# Train the model with randomForest, y = classe
model <- randomForest(classe ~ ., data = training)
A cross validation strategy is used to estimate how accurately the predictive model will perform with live data. 75% of the training data is partitioned to train the model, with the remaining 25% used to estimate the efficacy. This is validated by:
crossValidationPrediction <- predict(model, testing)
confMatrix <- confusionMatrix(testing$classe, crossValidationPrediction)
I estimated a very low out of sample rate of <1% because the collection of the training data was in a highly regulated environment, with the participants being instructed on how to perform the exercises. In the future, additional training environments would need better modeling strategies. In a few measurements, the cross validation accuracy was very high (99.5 - 100%), so the model was ready for testing. After running cross validation, the out of sample rate was approximately 0.5%.
The trained model is used to predict the quality of the workout form, either A or B to E. This is predicted by:
prediction <- predict(model, testingProcessed)
From this the athlete can determine workout deficiencies and work to perfect defects in the future.
install.packages("caret")
install.packages("randomForest")
install.packages("corrplot")
Rscript grader.r [training-CSV-URL] [testing-CSV-URL]
# with example files:
Rscript grader.r "https://d396qusza40orc.cloudfront.net/predmachlearn/pml-training.csv" "https://d396qusza40orc.cloudfront.net/predmachlearn/pml-testing.csv"


var¶
For hooking up static / global variables to Lua usertypes
The sole purpose of this tagging type is to work with usertypes to provide my_class.my_static_var
access, and to also provide reference-based access as well.
#include <sol.hpp>
struct test {
static int muh_variable;
};
int test::muh_variable = 25;
int main () {
sol::state lua;
lua.open_libraries();
lua.new_usertype<test>("test",
"direct", sol::var(2),
"global", sol::var(test::muh_variable),
"ref_global", sol::var(std::ref(test::muh_variable))
);
int direct_value = lua["test"]["direct"];
// direct_value == 2
int global = lua["test"]["global"];
// global == 25
int global2 = lua["test"]["ref_global"];
// global2 == 25
test::muh_variable = 542;
global = lua["test"]["global"];
// global == 25
// global is its own memory: was passed by value
global2 = lua["test"]["ref_global"];
// global2 == 542
// global2 was passed through std::ref
// global2 holds a reference to muh_variable
// if muh_variable goes out of scope or is deleted
// problems could arise, so be careful!
return 0;
}


My Movie List
New Movie
name
Image
action
adventure
animation
comedy
detective
fantasy
history
horror
musical
pirate
romantic
sci-fi
war
western
Release


xxx
% Markdown
Original: https://guides.github.com/features/mastering-markdown/
Headers
This is an <h1> tag
This is an <h2> tag
This is an <h6> tag
# This is an \<h1\> tag
## This is an \<h2\> tag
###### This is an <h6> tag
Emphasis
This text will be italic This will also be italic
This text will be bold This will also be bold
You can combine them
*This text will be italic*
_This will also be italic_
**This text will be bold**
__This will also be bold__
_You **can** combine them_
Lists
Unordered
- Item 1
- Item 2
- Item 2a
- Item 2b
* Item 1
* Item 2
* Item 2a
* Item 2b
Ordered
- Item 1
- Item 2
- Item 3
- Item 3a
- Item 3b
1. Item 1
1. Item 2
1. Item 3
1. Item 3a
1. Item 3b
Images
![Image of Yaktocat](https://octodex.github.com/images/yaktocat.png)
Format: ![Alt Text](url)
Links
https://github.com - automatic! GitHub
https://github.com - automatic!
[GitHub](https://github.com)
Blockquotes
As Kanye West said:
We're living the future so the present is our past.
As Kanye West said:
> We're living the future so
> the present is our past.
quoted codeblocks
> ```
> quoted codeblocks
> ```
Inline code
I think you should use an
<addr>
element here instead.
I think you should use an
`<addr>` element here instead.
Syntax highlighting
function fancyAlert(arg) {
if (arg) {
$.facebox({div: '#foo'})
}
}
```javascript
function fancyAlert(arg) {
if (arg) {
$.facebox({div: '#foo'})
}
}
```
You can also simply indent your code by four spaces:
function fancyAlert(arg) {
if (arg) {
$.facebox({div: '#foo'})
}
}
function fancyAlert(arg) {
if (arg) {
$.facebox({div: '#foo'})
}
}
Here's an example of Python code without syntax highlighting:
def foo():
if not bar:
return True
```
def foo():
if not bar:
return True
```
Task Lists
- @mentions, #refs, links, formatting, and tags supported
- list syntax required (any unordered or ordered list supported)
- this is a complete item
- this is an incomplete item
- [x] @mentions, #refs, [links](), **formatting**, and <del>tags</del> supported
- [x] list syntax required (any unordered or ordered list supported)
- [x] this is a complete item
- [ ] this is an incomplete item
Tables
You can create tables by assembling a list of words and dividing them with hyphens -
(for the first row), and then separating each column with a pipe |
:
First Header | Second Header
------------ | -------------
Content from cell 1 | Content from cell 2
Content in the first column | Content in the second column
Would become:
| First Header | Second Header |
|---|---|
| Content from cell 1 | Content from cell 2 |
| Content in the first column | Content in the second column |
Strikethrough
Any word wrapped with two tildes (like ~~this~~
) will appear crossed out.
Emoji
GitHub supports emoji!1 :sunglasses: (:sunglasses:
)
To see a list of every image they support, check out the Emoji Cheat Sheet.
-
Not supported yet, here :( ↩


The Network architecture becomes complex every passing day. Internal networks and the external networks fuse seamlessly to suit the ways of working in the modern day world. As information technology landscape adds to itself diverse Mobile Devices, Cloud based infrastructure, applications & services, Social Media and other contemporary concepts, threats loom large.
The safety of the firewalls is no more assured as internal networks access the external ones and privileged users from the outside have penetrate into the firewall itself.
Network Penetration Testing involves rigorous testing of the controls, frameworks and processes designed for the networks related to the system. It lays out procedures to penetrate into key networks of the system with an aim to identify security susceptibilities and mitigate them much before the attackers do from multiple entry points at different levels.
In a nutshell, a competent Network Pen Test would start off by investigating for information leakages. Next, it undertakes the herculean task of scanning the multiple and ever increasing devices, which are also the entry points to the system. After identifying the susceptible devices, the testing procedures set out guidelines to tighten the safety procedures making defiance tough for the intruders. Alerts are also integrated into the security procedures as a part of infringement management


Match Play. Red trails 1-2 to 7. Should Red redouble? If redoubled, should White take?
pips Red=168 White=95
(CorrectAnswer= 0/0, ErrorScore= 0)
For money and with a completely active cube this would be nowhere near a redouble.
However, once again the match score has a huge influence on the decisions. With the cube on 4 gammons don’t give White much extra value. Gammons also give Red too many points but he is the trailer.
Now not doubling is worse than a double blunder and the take is actually quite close. The more you study positions like this the more you realise just how complex match play doubling is and it looks like we also need to give much more thought to strategy in match play situations.
However, once again the match score has a huge influence on the decisions. With the cube on 4 gammons don’t give White much extra value. Gammons also give Red too many points but he is the trailer.
Now not doubling is worse than a double blunder and the take is actually quite close. The more you study positions like this the more you realise just how complex match play doubling is and it looks like we also need to give much more thought to strategy in match play situations.
Cube analysis 2-ply cubeless equity +0.348 (Money: +0.350) 0.663 0.211 0.007 - 0.337 0.188 0.007 Cubeful equities: 1. Double, take +0.865 2. Double, pass +1.000 (+0.135) 3. No double +0.700 (-0.165) Proper cube action: Redouble, take


In what should our index.html and other files for our website be kept?
What is the first line of your html page?
How many id’s can you have in one html page?
What HTML tag makes a link?
Bonus: What attribute do you add to a link to help screen readers?
Is CSS a type of HTML?
What does CSS do?
What is the preferred way to connect your CSS to your HTML file?
How do I create a border just on the top of my element?
What CSS styles make my element wider and taller?
What is an example of an inline element and an example of a block element?

What style do I use to stop floating elements?
What 3 or 4 measurements can we use for the font-size?
How do I write the font shorthand style?
Does padding increase the total width & height of an element?
How can I set the padding to 10px on the top, 20px on the right, 10px on the bottom, and 20px on the left?
Does margin increase the total width & height of an element?
How do I set the margin for all the sides to be the same?
How can I horizontally center my body tag?
How do I right-align my text?
What tag can I use to apply a specific style to one word in my paragraph?
What are 2 ways I can set the color of an element? (There are 3 total)
How can I make my background color black?
What pseudo-class do I use to change the color when I hover over a link?
What is the CSS style for underlining an element?
Which element did we discuss that has no semantic meaning?
What kind of path will let me link to an image or file in the same or sub-directory?
What kind of path will let me link to an image or file anywhere on the web?


I Alone Level-up: Chapter 27
If it was just the boss, Jinwoo had already shown that he could solo the spider . But thinking about holding back the horde of insects at the entrance with just the two of them made Yoo Jinho’s breath stop .
“ . ”
Watching Yoo Jinho at a loss for words, Jinwoo nodded understandingly .
‘Still, this is the best method . ’
To kill two birds with one stone .
It was very difficult for an E-ranker like him to get into a private raiding party . He had realized this after trying to earn money for the month . He could not reserve a Dungeon with his own credentials, and it was impossible for him to form his own raiding party . But now Yoo Jinho was offering to create the party for him .
This was the perfect opportunity .
“B-but hyungnim! To enter a C-rank Gate, you’d need a minimum party of ten people!”
“If we told them we just needed to fill the headcount and offered them money, people would be lining up . ”
It was the method he had learned from Hwang Dongseok . The Hunters who did not want to risk their lives but needed money would jump at the opportunity with a hunger in their eyes .
Yoo Jinho made an expression of defeat,
“You’re… you’re saying we’ll be taking down all the monsters of the Dungeon on our own?”
Well, it would be just Jinwoo .
“Yep . ”
With that method, he would be able to hoard all the experience points to himself . Additionally, with just Yoo Jinho at his side, he didn’t need to hold back or worry about revealing his true powers .
‘I’ll be able to powerlevel with that . ’
On top of that, after the Raids were complete, he would obtain that valuable building . Once again, “killing two birds with one stone” .
All that was left to do is convince Yoo Jinho . As expected, the young man was terrified .
“S-still… wouldn’t it be too dangerous, hyungnim?”
“Tsk, tsk . You understand one thing but not the other . ”
“Huh?”
Jinwoo gestured for Yoo Jinho to come closer, and the young man leaned in .
“If you looked at just the two of us going into the Dungeon from another angle, it means that no one else has to get hurt, right?”
“R-right . ”
“Let’s put aside your first Raid, which you had to join as a tagalong . Imagine how your father will feel if the raid team that you put together goes through nineteen Raids with no one getting hurt . ”
Yoo Jinho’s eyes shot open in understanding .
If… If they were able to pull that off, convincing his father would become that much easier!
He would be able to show that a mere D-ranker is able to lead a raiding party through 19 Raids without any casualties . It would be a testament to his ability to become the Guildmaster . This would be the greatest feat that he could bring before his father .
Jinwoo read Yoo Jinho’s expressions and became satisfied .
‘Got him . ’
The one holding all the cards right now was Jinwoo . Even if Yoo Jinho could not be convinced, he could always ensure his growth through the Association’s Raids or Instant Dungeons; it would just be a matter of time .
In the meantime, Yoo Jinho was deep in thought . Even if it was a little scary, if everything went according to Jinwoo’s words, the benefit to him would be great . Thinking back on the unstoppable power that Jinwoo displayed in the last Raid, he felt that it would just be possible .
Yoo Jinho made his decision .
“Okay, I’ll agree to those conditions, hyungnim . I’ll gather the team members . ”
“Good . ”
Jinwoo nodded . The two men were in agreement . Yoo Jinho finally was able to sit-up straight and put on a bright smile .
‘I was able to get hyungnim’s help . ’
The remaining Raids no longer worried him . He had gained a reliable ally in Jinwoo, and per his condition, gathering the remaining members suddenly became a lot easier . He no longer needed other capable, low ranking Hunters . Instead, anyone who answered the job boards would do .
‘With this, I’ve taken a step towards becoming a Guildmaster . ’
Jinwoo was also smiling .
‘I’ll solo all the C-rank Dungeons and quickly raise my levels . ’
The two men left the cafe with satisfied faces .
After bidding farewell to Yoo Jinho, Jinwoo quickly ran home . He didn’t know when the Association would come calling . It had been 10 days since he was discharged from hospital; it would not be strange for a Gate to appear in their vicinity soon . On average, the Association had gathered its Hunters two or three times throughout the month for a Raid . The reason he had initially allotted 1 hour to Yoo Jinho was because Jinwoo wanted to be back home as fast as possible .
‘Right now, even missing just one E-rank Dungeon would be regrettable . ’
He wanted to quickly raise his levels through magic beasts . To think that not having a phone would be this inconvenient . Thankfully, his new phone would be arriving in few days .
Jinwoo opened the door and headed inside .
“ . ”
The house was quiet . Since it was a weekday, his little sister was in school . Confirming that no one else was in the house, Jinwoo opened his daily quest window .
‘Time to grab today’s reward . ’
Jinwoo had already finished the daily quest before meeting with Yoo Jinho but did not receive the rewards yet . He wasn’t about to show off the light of status recovery or the appearance of a gift box out of nowhere in the middle of the street .
ring~
| Do 100 Push-ups:. (Complete) (100/100). Do 100 Sit-ups: (Complete) (100/100). . Do 100 Squats: (Complete) (100/100). Run 10 kilometers: (Complete) (11/10) |
| You’ve completed the ‘Daily Quest: The Preparation To Become Powerful’. |
| The reward for completing the quest has arrived . . |
| Would you like to verify? (Y/N). |
“Ye----no . No . ”
He was about to verify the rewards out of habit but quickly stopped himself after noticing something . His eyes focused on the running part of the quest .
| Run 10 kilometers:. (Complete) (11/10) |
. Going over the 10 km requirement by 1 didn’t phase him much at first . But more he thought about it, it was strange . .
‘Why would it keep recording after meeting the goal?’
His eyes narrowed . Was this a coincidence?
He got down on the ground and started performing push-ups in rapid succession, his gaze fixed on the quest screen .
ring~!
| You’ve succeeded in doing 1 push-up . . |
| Do 100 Push-ups:. (Complete) (111/100) |
ring~!
| You’ve succeeded in doing 1 push-up . . |
| Do 100 Push-ups:. (Complete) (112/100) |
‘As I thought…’
Running wasn’t the only category that was recording beyond the goal . The push-ups were also going above their required amount .
Jinwoo became curious just how high the numbers would go . His arms flexed, showing their veins . Thanks to his raised attributes, he could barely feel the weight of his body . It felt as light as feathers . The numbers quickly reached 200 .
ring~!
| You’ve succeeded in doing 1 push-up . . |
| Do 100 Push-ups:. (Complete) (200/100) |
ring~!
| You’ve succeeded in doing 1 push-up . . |
| Do 100 Push-ups:. (Complete) (200/100) |
The numbers stopped exactly at 200 . He tried few more times, but they did not go up . Soon, he had completed the sit-ups and squats to 200 as well .
| Do 100 Push-ups:. (Complete) (200/100). Do 100 Sit-ups: (Complete) (200/100). . Do 100 Squats: (Complete) (200/100). Run 10 kilometers: (Complete) (11/10) |
Exactly 200 . The tracker was not going up infinitely, nor was it stopping at 100 . There was something to this . What would be waiting for him when all of the overcaps were met?
‘Time to find out . ’
Jinwoo left the house faster than ever . The 9 km of running was completed in a blink of an eye . As he finished the run in front of his house, a message arrived .
ring~
| You’ve completed the ‘Hidden Quest: The Preparation To Become Powerful’. |
| The reward for completing the quest has arrived . . |
| Would you like to verify? (Y/N). |
The name of the quest did not change, but the quest type had turned to “hidden” . His intuitions were correct . Jinwoo gulped .
‘ . Verify . ’
.
ring~
| You’ve received the below rewards . . | ||
| Reward 1 . Status Recovery. | ||
| Reward 2 . All stats +3. | ||
| Reward 3 . Select one:.
| ||
| Accept all?. |
‘Three points to every attribute!’
His eyes were wide open . As expected of a hidden quest, the rewards were amazing . Adding 3 points to every stat was the same thing as leveling up 3 times . No, in a way, it was even better . Gaining all these points without raising his levels would make leveling that much easier .
. At the same time, he felt a twinge of sadness . Somewhere deep in him, there was hope that every daily quest going forward could be completed this way, but Jinwoo knew that this was probably a one time deal . .
And if it was a one time deal, he would have to take great care with Reward 3 .
| Reward 3 . Select one:.
|
This was the first time he had to choose between different rewards . Selecting one would lose the other .
‘So I probably will never be able to see the other . ’
Just going by their names, it was clear which one he had to pick . But even that could be a trap .
“Accept Reward 3”
ring~
| You must choose between the two Random Boxes . .
Which one will you choose?. |
The explanations were simple . That made the decision even harder . If there was no explanation, he would’ve chose the blessed one without a thought . But after reading the explanation, it felt that he would regret the decision no matter which one he picked .
‘Something that I want vs . something that I need…’
At first glance, both sounded good to him .
‘But there is a trap here . ’
Something that he ‘wanted’ would be because it was needed . But something that he ‘needed’ might not necessarily be something that he wanted . For example, if he was in a situation where he needed a powerful weapon, a powerful bomb that could blow away everything including him might appear .
‘That seems fitting of something cursed . ’
Jinwoo decided to go with the less risky option . Not knowing the result yet, it was best to minimize the amount of regret involved . Feeling like he couldn’t be disappointed in something that he wanted, Jinwoo made a cold decision .
“Blessed Random Box . ”
A small box appeared at his feet .
Jinwoo picked it up .
‘Could it be…?’


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Surface air temperature (in K, upper panel), Sea ice area (in 10 6 km 2, middle panel), Net downward total surface heat flux (in W m −2, bottom panel), which is the total of the net shortwave and longwave radiative fluxes and the sensible and latent heat fluxes. Note that the 30 W m −2 additional downward forcing (see Methods) is included in the response value for the forcing season (as an example, the 44.7 W m −2 JJA response for JJA forcing includes the 30 W m −2 forcing). ANN represents the annual mean response. The uncertainties represent the 95% cadditional downward forcing (see Methods) is included in the response value for the forcing season (as an example, the 44.7 W m −2 JJA confidence interval of the mean, where seasonal (annual) means are used to evaluate the seasonal (annual) response uncertainties. Colouring indicates the magnitude and sign of the responses..


|
Movie watching, note taking, critique: Kyle Barkmeier Original concept and ideas: Kyle Barkmeier and Daniel Barkmeier Site design and layout: Daniel Barkmeier Extra coding: Kyle Barkmeier If you wish to contact me, you can reach me at: SSBP.Webmaster at gmail dot com All material on these pages are © Kyle and Dan Barkmeier, except for those images that are © their respective owners. And anyways, ripping off other's ideas is just sad. :( |


Setting up MIMIC-III dataset locally (OSX)
I wanted a local dataset to begin messing around with deep learning (and whatever the next hot technology will be in 6 months lol). Since most of my time is spent on electronic medical record (EMR) data, I decided to set out on finding a free dataset that I could leverage for my experimentations. Since I had to bounce around the net combining pieces of information to make this thing operational, I decided to write this post for myself and perhaps the passerby.
Requirements for dataset:
- Free
- Can’t be too large
- Setup should be easy
Thankfully a quick search and I came across the MIMIC dataset put together by the MIT Lab for Computational Physiology. This is a deidentified dataset of over 40,000 critical care patients and contains all sorts of information such as lab tests, medications, demographics, etc. It’s free, not too large (90GB when all said and done), and can be setup relatively easily thanks to the wonderful support they already provide!
I followed instructions in the documentation to request access by filling out the necessary information and taking the required HIPAA training.
Note: I’m glad they require the training because eventhough the data is deidentified, I’m sure with enough grit something identifiable could be derived from it and it’s nice to make sure users are held to a standard.
So once I received access it just then became a matter of how I wanted to set up the dataset. The website linked above is very helpful in describing the dataset and providing information on how to download and/or setup a database so it was fairly painless. The repository on Github has a buildmimic
folder with several options baked in. I went with the common Postgres install.
Note: instructions are geared toward OSX and assume you have about 100GB of disk space available
First things first, make sure you have Postgres installed. This can be checked with a simple which postgres
in Terminal. If it comes back with nothing, then we’ll have to get Postgres installed. Easiest way to do this, in my opinion, is to use homebrew. If that’s not installed on your computer then I recommend just following along on their website and coming back here.
Assuming brew
is installed, then I’ve put together a little gist to help out. Feel free to reach out if you have questions and I’ll see if I can help.
So after following the above gist, you should have a functional postgres set up. Yay! Let’s go ahead and move forward with getting the MIMIC code, data, and subsequently loading it into our local postgres.
- First we need to create a
postgres
user. This will make things easier when loading the MIMIC data. To do so, go to your Terminal and run:/usr/local/opt/postgres/bin/createuser -s postgres
- Clone the MIMIC repository (assumes
git
is installed. If notbrew install git
). Find a place on your local system that you want to keep the code and in your Terminal rungit clone https://github.com/MIT-LCP/mimic-code.git
. This will “clone” the code to your local system so we can leverage the wonderful work the folks at MIT have already done. - Retrieve the data (assumes
wget
is installed. If notbrew install wget
). Find somewhere you’ll want to store the data (in gzipped format) and in your Terminal run:wget --user <USERNAME> --ask-password -A csv.gz -m -p -E -k -K -np -nd https://physionet.org/works/MIMICIIIClinicalDatabase/files/
- Load the data.
You’ll now need to
cd
into the MIMIC code repository we cloned and specifically into thebuildmimic/postgres
directory. From there you can run the:make create-user mimic-gz datadir="/PATH/TO/THE/DATA"
command. Note: This will take several hours to run (depending on your system). It’s recommended to do this overnight and to use something likecaffeine
(If not installed:brew cask install caffeine
)
At the end of that script should be a database check and you should be ready to use the database! Feel free to reach out if you have questions and I’ll do my best. :)


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--- title: Maps description: 3D environments and HD maps for LGSVL Simulator layout: page ---
{{ map.excerpt }}


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First Name
Last NameFirst Name
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you can donate to {{playerById.fullName}} or partecipate to his transfer career
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|---|---|---|---|---|---|
| {{season}} | {{formatDate date}} | {{sellerClubRef.name}} | {{buyerClubRef.name}} | {{formatMoney market_value}} | {{formatMoney fee}} |
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Classes in Ruby
One of the cool things I learned about Ruby is that just like methods, you can create your own classes. It's a bit hard to wrap your head around, but one way to look at it is with real objects. In the real world, most transportation that we use has similar functions, but widely different characteristics. We can think of all transportation falling under the class of vehicle.
If we were to make a class in Ruby it would be as simple as writing "Class Vehicle end." But we can include different characteristics within that class to help differentiate between all the different vehicle types. Things like number of wheels or horsepower or seating capacity.
Many classes start off with the method initialize followed by the characteristics of that class. Using the example above, you might see a Vehicle class set up like this:
The @ symbols are making local variables that can be used as a reference later in the program. Let's focus on how now that the class is set up to take information in, it still does nothing. You must create a new object of that class by doing the following:
In the picture above, I created two new objects in the Vehicle class and gave them characteristics of wheels, horsepower and seating capacity. While the Vehicle class still doesn't serve much purpose, when combined with other methods, it is possible to do all sorts of things to the data supplied, such as organizing it by highest horsepower, calculating how many vehicles would be needed to transport x amount of people and so forth.


[OgreKit Lua] |
Methods
| Array.constructor | |
| Array.clear | |
| Array.at | |
| Array.size | |
| Array.empty | |
| Array.push | |
| Array.erase | |
| Array.iterator |
Operators
| Array.__index |
Creates an empty array.
Removes all elements from the array.
Returns the element at the array index specified.
| number | array index equal or greater than zero. |
True if the array has no elements.
Returns the number of elements in this array.
Adds an element to the back of the array.
| T | Generic type depending on the type contained in the array. |
Removes an element from the array.
| T | Generic type depending on the type contained in the array. |
Returns an iterator for all elements in this array.
Index meta method.
| number | array index equal or greater than zero. |


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+++ draft = false date = "2016-12-13T09:26:44-01:00" title = "Easier development when dealing with docker-compose stacks" tags = ["docker-compose", "docker", "cookbook", "Plone", "tutorial"] created = "2016-12-13T08:58:35-01:00" modified = "2016-12-13T09:26:44-01:00" permaLink = "http://play.pixelblaster.ro/blog/archive/2016/12/13/easier-development-when-dealing-with-docker-compose-stacks" author = "Tiberiu Ichim" aliases = [ "/blog/archive/2016/12/13/easier-development-when-dealing-with-docker-compose-stacks" ] +++
For some time I've had to deal with two separate, docker-compose based application stacks. One of them combining a Ruby on Rails app with a whole suite of ElasticSearch nodes, sidekiq worker, Postgresql, nginx, the whole shebang. Another is just a plain Zope/Plone stack, but the difficulties remain the same: when I wanted to do production debugging or just plain development using that environment, I needed something that can be started manually, in the whole stack. I don't want to have to deal with rpdb or remote byebug just to be able to debug. I want to poke around the whole stacks and see what happens.
So my solution was, in both cases, to configure another service in the docker-compose stack that just did nothing.
... debug: image: plone ports: - "8090:8080" volumes: - ./src:/plone/instance/src entrypoint: sh -c "tail -f /dev/null"
Something like the above. Notice the entry point, which just keeps the container up, but does nothing. Now I can run
docker exec -it debug_1 bash
And inside the container, I can edit the eggs to set a pdb.trace() line whereever, then start the instance:
bin/standalone fg
Why go through this trouble instead of just running the plone container with something like
docker run --name debug plone
Usually docker-compose stack are entertwined services that need connecting to one another. My given service debug could be linked to whatever other service: postfix, postgresql, elasticsearch, etc. Why go through the trouble of linking manually, from the command line, when I can just get docker-compose to do it?


fn() lexicalCastInterpret the character sequence in source as the numeric value and write to target.
Interpret the character sequence in source as the numeric value and write to target.
| Defined in | <seqan/stream.h> |
|---|---|
| Signature |
bool lexicalCast(target, source);
TTarget lexicalCast<TTarge>(source) // throws BadLexicalCast
|
Parameters
target
|
A numeric value to write to. |
|---|---|
source
|
The source sequence of char to convert. |
Template Parameters
TTarget |
The type to use for lexical cast of source. |
|---|
Return Values
bool |
true if successful and false if there was a problem with the cast. |
|---|
Detailed Description
Examples
The following example shows some lexical cast from various sequence types to numbers.
#include <iostream> #include <string> #include <seqan/sequence.h> #include <seqan/stream.h> using namespace seqan; int main() { // interpret string literal as int int x = 0; // successful cast std::cout << "success=" << lexicalCast(x, "123") << ", x=" << x << "\n"; // unsuccessful cast std::cout << "success=" << lexicalCast(x, "42a") << ", x=" << x << "\n"; // interpret std::string as int std::cout << "success=" << lexicalCast(x, std::string("234")) << ", x=" << x << "\n"; // interpret CharString as int std::cout << "success=" << lexicalCast(x, CharString("345")) << ", x=" << x << "\n"; // interpret infix as int CharString str = "123"; std::cout << "success=" << lexicalCast(x, infix(str, 1, 2)) << ", x=" << x << "\n"; // interpret literal as float and double float f = -1; double d = -1; std::cout << "success=" << lexicalCast(f, "3.1") << ", f=" << f << "\n" << "success=" << lexicalCast(d, "4.2") << ", d=" << d << "\n"; // demonstrate throwing of exceptions with lexicalCast() try { x = lexicalCast<int>("a"); } catch (BadLexicalCast const & badCast) { std::cout << "error: " << badCast.what() << "\n"; } // demonstrate throwing of exceptions with lexicalCastWithException try { lexicalCastWithException(x, "b"); } catch (BadLexicalCast const & badCast) { std::cout << "error: " << badCast.what() << "\n"; } return 0; }
success=1, x=123 success=0, x=123 success=1, x=234 success=1, x=345 success=1, x=2 success=1, f=3.1 success=1, d=4.2 error: Unable to convert 'a' into int. error: Unable to convert 'b' into int.
Thrown Exceptions
BadLexicalCast |
The second variant throws BadLexicalCast in the case that casting failed. |
|---|
Data Races
Thread safety unknown!


A custom list that manages index/position information for contained elements.
| author: | Jason Kirtland |
|---|
orderinglist is a helper for mutable ordered relationships. It will intercept list operations performed on a relationship()-managed collection and automatically synchronize changes in list position onto a target scalar attribute.
Example: A slide table, where each row refers to zero or more entries in a related bullet table. The bullets within a slide are displayed in order based on the value of the position column in the bullet table. As entries are reordered in memory, the value of the position attribute should be updated to reflect the new sort order:
Base = declarative_base()
class Slide(Base):
__tablename__ = 'slide'
id = Column(Integer, primary_key=True)
name = Column(String)
bullets = relationship("Bullet", order_by="Bullet.position")
class Bullet(Base):
__tablename__ = 'bullet'
id = Column(Integer, primary_key=True)
slide_id = Column(Integer, ForeignKey('slide.id'))
position = Column(Integer)
text = Column(String)
The standard relationship mapping will produce a list-like attribute on each Slide containing all related Bullet objects, but coping with changes in ordering is not handled automatically. When appending a Bullet into Slide.bullets, the Bullet.position attribute will remain unset until manually assigned. When the Bullet is inserted into the middle of the list, the following Bullet objects will also need to be renumbered.
The OrderingList object automates this task, managing the position attribute on all Bullet objects in the collection. It is constructed using the ordering_list() factory:
from sqlalchemy.ext.orderinglist import ordering_list
Base = declarative_base()
class Slide(Base):
__tablename__ = 'slide'
id = Column(Integer, primary_key=True)
name = Column(String)
bullets = relationship("Bullet", order_by="Bullet.position",
collection_class=ordering_list('position'))
class Bullet(Base):
__tablename__ = 'bullet'
id = Column(Integer, primary_key=True)
slide_id = Column(Integer, ForeignKey('slide.id'))
position = Column(Integer)
text = Column(String)
With the above mapping the Bullet.position attribute is managed:
s = Slide()
s.bullets.append(Bullet())
s.bullets.append(Bullet())
s.bullets[1].position
>>> 1
s.bullets.insert(1, Bullet())
s.bullets[2].position
>>> 2
The OrderingList construct only works with changes to a collection, and not the initial load from the database, and requires that the list be sorted when loaded. Therefore, be sure to specify order_by on the relationship() against the target ordering attribute, so that the ordering is correct when first loaded.
Warning
OrderingList only provides limited functionality when a primary key column or unique column is the target of the sort. Since changing the order of entries often means that two rows must trade values, this is not possible when the value is constrained by a primary key or unique constraint, since one of the rows would temporarily have to point to a third available value so that the other row could take its old value. OrderingList doesn’t do any of this for you, nor does SQLAlchemy itself.
ordering_list() takes the name of the related object’s ordering attribute as an argument. By default, the zero-based integer index of the object’s position in the ordering_list() is synchronized with the ordering attribute: index 0 will get position 0, index 1 position 1, etc. To start numbering at 1 or some other integer, provide count_from=1.
Prepares an OrderingList factory for use in mapper definitions.
Returns an object suitable for use as an argument to a Mapper relationship’s collection_class option. e.g.:
from sqlalchemy.ext.orderinglist import ordering_list
class Slide(Base):
__tablename__ = 'slide'
id = Column(Integer, primary_key=True)
name = Column(String)
bullets = relationship("Bullet", order_by="Bullet.position",
collection_class=ordering_list('position'))
| Parameters: |
|
|---|
Additional arguments are passed to the OrderingList constructor.
Numbering function: consecutive integers starting at 0.
Numbering function: consecutive integers starting at 1.
Numbering function: consecutive integers starting at arbitrary start.
A custom list that manages position information for its children.
The OrderingList object is normally set up using the ordering_list() factory function, used in conjunction with the relationship() function.
A custom list that manages position information for its children.
OrderingList is a collection_class list implementation that syncs position in a Python list with a position attribute on the mapped objects.
This implementation relies on the list starting in the proper order, so be sure to put an order_by on your relationship.
| Parameters: |
|
|---|
L.append(object) – append object to end
L.insert(index, object) – insert object before index
Raises IndexError if list is empty or index is out of range.
L.remove(value) – remove first occurrence of value. Raises ValueError if the value is not present.
Synchronize ordering for the entire collection.
Sweeps through the list and ensures that each object has accurate ordering information set.


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Getting Started with Swing
- About the JFC and Swing
- Compiling and Running Swing Programs
- Questions and Exercises: Getting Started with Swing
- Answers: Getting Started with Swing
Learning Swing by Example
- Example One: Your First Swing Program
- Example Two:
SwingApplication
- Example Three:
CelsiusConverter
- Example Four: An Improved
CelsiusConverter
- Example Five:
LunarPhases
- Example Six:
VoteDialog
- Summary
- Questions and Exercises: Learning Swing by Example
- Answers: Learning Swing by Example
Using Swing Components
- A Visual Index to the Swing Components
- Using HTML in Swing Components
- Using Top-Level Containers
- Using Models
- The JComponent Class
- Using Text Components
- Text Component Features
- The Text Component API
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Laying Out Components Within a Container
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- Listener API Table
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- Questions and Exercises: Writing Event Listeners
- Answers: Writing Event Listeners
Performing Custom Painting
- How Swing Components Are Displayed
- Introduction to Painting Concepts
- Implementing a Custom Component
- Summary
- Solving Common Painting Problems
- Questions and Exercises: Performing Custom Painting
- Answers: Performing Custom Painting
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--- layout: post status: publish published: true title: Beethoven Better - Episode 8.37 author: display_name: Corey Fineran login: Corey email<EMAIL_ADDRESS>url: '' author_login: Corey author_email<EMAIL_ADDRESS>wordpress_id: 11943 wordpress_url: http://ivyenvy.com/?p=11943 date: '2016-07-17 23:38:59 +0000' date_gmt: '2016-07-18 04:38:59 +0000' categories: - Podcast tags: [] comments: [] ---
Thanks for downloading the 415th episode of The Ivy Envy Podcast. The Cubs started the 2nd half of the 2016 season with a series win over the Rangers. On this episode, we talk discuss the series.
Kyle Hendricks is having a break-out season and we spend quite a bit of time looking at why he's being successful without a high strikeout rate or low walk rate.
The Cubs have not been at full strength for quite a while and we look at when injured players might re-join the team. Kurt shares a Szczur stat in his Scary Stat of the Week segment and we read some Internet Muscle Flexes.


Preparation time
less than 30 mins
Cooking time
10 to 30 mins
Serves
Serves 4
Try adding hot-smoked salmon to your paella for a delicious one-pan supper.
Heat the oil in a heavy-based frying pan and cook the onion and garlic for five minutes, stirring regularly.
Add the chorizo and fry until it releases its oil, then stir in the smoked paprika and rice.
Keep stirring until the rice is coated in oil before pouring in the stock. Bring to the boil and simmer for 15 minutes.
Add the clams and peas. Cook for another five minutes, or until the rice is cooked and the clam shells open (discard any clams that don't open).
Add salt and pepper, to taste. Stir through the parsley, flakes of salmon and garnish with thelemon wedges. Serve immediately.


If you're new to Mesos
See the getting started page for more information about downloading, building, and deploying Mesos.
If you'd like to get involved or you're looking for support
See our community page for more details.
Mesos Release and Support policy
The Mesos versioning and release policy gives operators and developers clear guidelines on:
- Making modifications to the existing APIs without affecting backward compatibility.
- How long a Mesos API will be supported.
- Upgrading the Mesos installation across release versions.
This document describes the release strategy for Mesos post 1.0.0 release. This might not be applicable for pre 1.0 releases, though parts of the strategy (e.g., release cadence) might be tested for in pre 1.0 releases.
Release Schedule
Mesos releases are time based and not feature based. This gives users and developers a predictable cadence to consume and produce features.
If a feature is not ready by the time a release is cut, that feature should be disabled. This means that features should be developed in such a way that they are opt-in by default and can be easily disabled (e.g., flag). A feature completion should not typically block a release.
A new Mesos release is cut every 2 months. The versioning scheme is SemVer. Typically, the minor release version is incremented by 1 (e.g., 1.1, 1.2, 1.3 etc) for every release, unless it is a major release.
Every (minor) release is a stable release and recommended for production use. This means a release candidate will go through rigorous testing (unit tests, integration tests, benchmark tests, cluster tests, scalability etc) before being officially released. In the rare case that a regular release is not deemed stable, a patch release will be released that will stabilize it.
Every (minor) release is supported for a period of 6 months. Support means fixing of critical issues that affect the release. Once a release reaches End Of Life (i.e., support period has ended) no more patch releases will be made for that release. Note that this is not related to backwards compatibility guarantees and deprecation periods (discussed later).
Which issues are considered critical?
- Security fixes
- Compatibility regressions
- Functional regressions
- Performance regressions
- Fixes for 3rd party integration (e.g., Docker remote API)
Whether an issue is considered critical or not is sometimes subjective. In some cases it is obvious and sometimes it is fuzzy. Users should work with committers to figure out the criticality of an issue and get agreement and commitment for support.
Once an issue is deemed critical, it will be fixed in only those affected releases that are still supported. This is called a patch release and increments the patch version by 1 (e.g., 1.2.1).
Patch releases are normally done once a month.
If a particular issue is affecting a user and the user cannot wait until the next scheduled patch release, he/she can request an off-schedule patch release for a specific supported version. This should be done by sending an email to the dev list.
Upgrades
All stable releases will be loosely compatible. Loose compatibility means:
- Master or agent can be upgraded to a new release version as long as they or the ecosystem components (scheduler, executor, zookeeper, service discovery layer, monitoring etc) do not depend on deprecated features (e.g., deprecated flags, deprecated metrics).
- There should be no unexpected effect on externally visible behavior that is not deprecated. See API compatibility section for what should be expected for Mesos APIs.
NOTE: The compatibility guarantees do not apply to modules yet. See Modules section below for details.
Note that this means users should be able to upgrade (as long as they are not depending on deprecated / removed features) Mesos master or agent from a stable release version N directly to another stable release version M without having to go through intermediate release versions. For the purposes of upgrades, a stable release means the release with the latest patch version. For example, among 1.2.0, 1.2.1, 1.3.0, 1.4.0, 1.4.1 releases 1.2.1, 1.3.0 and 1.4.1 are considered stable and so a user should be able to upgrade from 1.2.1 directly to 1.4.1. Look at the API compatability section below for how frameworks can do seamless upgrades.
The deprecation period for any given feature will be 6 months. Having a set period allows Mesos developers to not indefinitely accrue technical debt and allows users time to plan for upgrades.
The detailed information about upgrading to a particular Mesos version would be posted here.
API versioning
The Mesos APIs (constituting Scheduler, Executor, Internal, Operator/Admin APIs) will have a version in the URL. The versioned URL will have a prefix of /api/vN
where “N” is the version of the API. The “/api” prefix is chosen to distinguish API resources from Web UI paths.
Examples:
- http://localhost:5050/api/v1/scheduler : Scheduler HTTP API hosted by the master.
- http://localhost:5051/api/v1/executor : Executor HTTP API hosted by the agent.
A given Mesos installation might host multiple versions of the same API i.e., Scheduler API v1 and/or v2 etc.
API version vs Release version
- To keep things simple, the stable version of the API will correspond to the major release version of Mesos.
- For example, v1 of the API will be supported by Mesos release versions 1.0.0, 1.4.0, 1.20.0 etc.
- vN version of the API might also be supported by release versions of N-1 series but the vN API is not considered stable until the last release version of N-1 series.
- For example, v2 of the API might be introduced in Mesos 1.12.0 release but it is only considered stable in Mesos 1.21.0 release if it is the last release of “1” series. Note that all Mesos 1.x.y versions will still support v1 of the API.
- The API version is only bumped if we need to make a backwards incompatible API change. We will strive to support a given API version for at least a year.
- The deprecation clock for vN-1 API will start as soon as we release “N.0.0” version of Mesos. We will strive to give enough time (e.g., 6 months) for frameworks/operators to upgrade to vN API before we stop supporting vN-1 API.
API Compatibility
The API compatibility is determined by the corresponding protobuf guarantees.
As an example, the following are considered “backwards compatible” changes for Scheduler API:
- Adding new types of Calls i.e., new types of HTTP requests to “/scheduler”.
- Adding new optional fields to existing requests to “/scheduler”.
- Adding new types of Events i.e., new types of chunks streamed on “/scheduler”.
- Adding new header fields to chunked response streamed on “/scheduler”.
- Adding new fields (or changing the order of fields) to chunks' body streamed on “/scheduler”.
- Adding new API resources (e.g., “/foobar”).
The following are considered backwards incompatible changes for Scheduler API:
- Adding new required fields to existing requests to “/scheduler”.
- Renaming/removing fields from existing requests to “/scheduler”.
- Renaming/removing fields from chunks streamed on “/scheduler”.
- Renaming/removing existing Calls.
Implementation Details
Release branches
For regular releases, the work is done on the master branch. There are no feature branches but there will be release branches.
When it is time to cut a minor release, a new branch (e.g., 1.2.x) is created off the master branch. We chose ‘x’ instead of patch release number to disambiguate branch names from tag names. Then the first RC (-rc1) is tagged on the release branch. Subsequent RCs, in case the previous RCs fail testing, should be tagged on the release branch.
Patch releases are also based off the release branches. Typically the fix for an issue that is affecting supported releases lands on the master branch and is then backported to the release branch(es). In rare cases, the fix might directly go into a release branch without landing on master (e.g., fix / issue is not applicable to master).
Having a branch for each minor release reduces the amount of work a release manager needs to do when it is time to do a release. It is the responsibility of the committer of a fix to commit it to all the affecting release branches. This is important because the committer has more context about the issue / fix at the time of the commit than a release manager at the time of release. The release manager of a minor release will be responsible for all its patch releases as well. Just like the master branch, history rewrites are not allowed in the release branch (i.e., no git push –force).
API protobufs
Most APIs in Mesos accept protobuf messages with a corresponding JSON field mapping. To support multiple versions of the API, we decoupled the versioned protobufs backing the API from the “internal” protobufs used by the Mesos code.
For example, the protobufs for the v1 Scheduler API are located at:
include/mesos/v1/scheduler/scheduler.proto
package mesos.v1.scheduler;
option java_package = "org.apache.mesos.v1.scheduler";
option java_outer_classname = "Protos";
...
The corresponding internal protobufs for the Scheduler API are located at:
include/mesos/scheduler/scheduler.proto
package mesos.scheduler;
option java_package = "org.apache.mesos.scheduler";
option java_outer_classname = "Protos";
...
The users of the API send requests (and receive responses) based on the versioned protobufs. We implemented evolve/devolve converters that can convert protobufs from any supported version to the internal protobuf and vice versa.
Internally, message passing between various Mesos components would use the internal unversioned protobufs. When sending response (if any) back to the user of the API, the unversioned protobuf would be converted back to a versioned protobuf.


Patterns occur in several syntactic contexts in Timber (e.g. in the left hand sides of bindings, lambda expressions and case alternatives). Syntactically, patterns form a subset of expressions; a pattern is one of the following:
At run-time, patterns are matched against values. Pattern-matching may succeed or fail; in the former case the result is a binding of the variables in the pattern to values. The rules are as follows:
The special "wildcard" variable _ may be used in patterns; in contrast to other variables, it is not bound by pattern-matching.
A consequence of the way pattern-matching is done is that patterns must be linear; no variable may occur more than once in a pattern.
Syntactically, bindings are divided into type signatures and equations. Equations are either function bindings, pattern bindings or instance bindings for type classes.
var (, var)* :: qtypeHere a qtype is a (possibly qualified) type.
| Examples |
|---|
| x, y, z :: Int |
| map :: (a -> b) -> [a] -> [b] |
| elem :: a -> [a] -> Bool \\ Eq a |
We present first the simplest form of function definition, a sequence of equations, and then how these may be extended with where-clauses and with guards; these extensions may be combined.
var pat* = expr
The variable (the name of the function) and the number of patterns must be the same in all equations. The order of equations is significant; when applying the function, pattern-matching is tried starting wih the first equation until it succeeds; the function value is computed from right hand side of that equation, using the variable bindings obtained. Within one equation, patterns are matched from left to right.
| Example |
|---|
| zip (x:xs) (y:ys) = (x,y) : zip xs ys |
| zip _ _ = [] |
A binding may have attached a where-clause with a list of local bindings in layout-sensitive syntax
var pat* = expr where bind +
| Example |
|---|
| formatLine n xs = concatMap f xs |
| where f x = rJust n (show x) |
var pat* ( | (qual)+ = expr )+
In the most common case, a qual is a Boolean expression. After pattern-matching has succeeded, the guards are evaluated in turn; the right hand side corresponding to the first true guard (if any) is used.
| Example |
|---|
| lookup x [] = Nothing |
| lookup x ((a,b) : xs) |
| | x == a = Just b |
| | True = lookup x xs |
More complicated guards that bind variables are possible, but omitted here.
pat = expr
where pat is not a variable (in which case the binding is, perhaps counter-intuitively, a function binding).
Pattern bindings bind the variables in pat by pattern-matching against the value of expr. A pattern binding may not occur as a top-level declaration, but only as a local binding.
| Example |
|---|
| lookup' x ps = y |
| where Just y = lookup x ps |
The pattern-binding in the where-clause will fail (and the function application give a run-time error), if the result of calling lookup is Nothing.
instance var :: type var = exprThe type signature of an instance of a type class is prepended by the keyword instance. For instances, a type signature is compulsory; it is not sufficient to give only the binding defining the instance.
This basic form is to emphasise that an instance is just a struct value that is declared to be used as implicit argument, inserted by the compliler. Two alternative syntactic forms are also available:
instance var :: type = expr
instance var :: type where bind+
With the exception of struct expressions and the second alternative form for instances (which is immediately desugared to a form with a struct expression), bindings in a sequence are mutually recursive. This amounts to bound variables of all types and is independent of whether the corresponding right-hand sides need further evaluation or not.
Evaluation of bindings takes place in dependency order, but follows the declared order for bindings that are truly mutually dependent. This declared order is significant for one specific reason: evaluation of each binding must be able to complete without looking into the actual value of any of its forward references. Failure to do so will result in a run-time error.
| Examples | Comments |
|---|---|
| f 0 = 1 | |
| f n = n * f (n-1) | Ordinary recursive function binding |
| g h 0 = 1 | |
| g h n = n * h (n-1) | Non-recursive higher-order function binding |
| f' = g f' | Recursive binding of f' (equivalent to f) |
| x = 1 : y | Legal forward reference |
| y = 2 : x | Ok, both x and y are cyclic lists |
| a = 1 : b | |
| b = head a : [] | Legal backward reference (ok to look into the value of a) |
| a' = head b' : [] | Illegal forward reference (must look into the value of b') |
| b' = 2 : a' | Not reached (run-time error on previous line) |
In addition, binding sequences are subject to the following syntactic restrictions:


A few weeks ago I was discussing the decline of Clayton Kershaw with a few folks on Twitter. Someone in the conversation posted his average fastball velocity for each year of his career. If you haven’t been paying attention, the most noticeable thing about Kershaw in the last two seasons, besides his recurring back injuries, has been the decrease in the speed of his fastball. It has dropped nearly three miles per hour since he put up the best numbers of his career in 2015.
| Avg. Fastball Velocity(mph) | |
|---|---|
| 2007 | 96.12 |
| 2008 | 94.49 |
| 2009 | 94.42 |
| 2010 | 93.32 |
| 2011 | 94.18 |
| 2012 | 93.87 |
| 2013 | 93.47 |
| 2014 | 93.64 |
| 2015 | 94.20 |
| 2016 | 93.79 |
| 2017 | 93.21 |
| 2018 | 91.31 |
Is a Tommy John surgery in Kershaw’s future? There’s no telling. But I want to focus on what someone said in response to this data. It’s something we’ve all seen more than a few times. It goes something like this:
Speed isn’t the only important thing! Greg Maddux barely threw above 90mph in his prime!
I’ve heard others call it the Greg Maddux Comp. A good pitcher with great command minus the blistering heat can be just like Maddux, right? Wrong. It’s easy to drop the comparison in a discussion, but it’s a disservice to Maddux’s career. In the case of this Twitter conversation, the same person that made the Greg Maddux Comp said that Kershaw would be fine because he was “crafty enough” to combine his breaking balls with his ability to locate his fastball. Let’s compare Maddux’s peak to Kerhsaw’s peak. Since Kershaw will be 31 next season, it’s very unlikely he will have a better five-year peak than his 2011-2015 seasons. We can assume with high certainty that he has peaked.
Since not everyone agrees on what model of pitching WAR is best, I’ve decided to include both fWAR and a 50/50 blend of FIP-based and RA9-based WAR. I’ll call it mWAR for mixed-WAR. As an aside, I should mention that I’m not totally sure how I feel about FIP-based WAR. Why? Because it assumes that weak contact is out of a pitcher’s control. This might be true in some cases, but some pitchers, like Tom Glavine, outperformed their peripherals for most of their career. It’s not a fluke. I think it’s a flaw with FIP-based pitching WAR in the same way I think BP’s new DRC+ metric undervalues singles hitters like Ichiro. True pitching value comes somewhere in between FIP-based and RA9-based. You can quote me on that.
Anyway, here are their peaks compared:
| Name | Years | IP | K% | BB% | ERA+ | fWAR | mWAR(5-year peak) |
|---|---|---|---|---|---|---|---|
| Clayton Kershaw | 2011-2015 | 1128.0 | 28.7% | 5.6% | 172 | 36.2 | 37.6 |
| Greg Maddux | 1994-1998* | 1140.1 | 20.2% | 3.3% | 202 | 38.8 | 43.0 |
*Maddux missed around 20 games dude to strike-shortened seasons in 1994 and 1995
Two things really stand out: prime Kershaw struck out batters at a much higher rate than prime Maddux and prime Maddux vastly outperformed prime Kershaw in ERA+. The difference in K% makes sense, because Kershaw isn’t a control pitcher. Kershaw is a strikeout pitcher. Kershaw’s FIP during his peak was also about two tenths lower than Maddux’s. The reason Maddux still has a higher fWAR is probably because league average FIP was higher and Maddux also got more fielding runs. So, obviously, Kershaw and Maddux had different peaks. Their value is similar in fWAR but RA9 WAR values Maddux far more. The blend of RA9 and FIP WAR still favors Maddux too. Kershaw strikes out more people. Maddux allows less runs and walks less people. They’re not the same kind of pitcher.
Also, Maddux would have at least another 4 or 5 wins to add to his WAR total and that’s a low estimate since that was his prime. That would give him one of the greatest 5-year peaks for any pitcher… ever. All without striking out at a high rate.
So now that we know Maddux and Kershaw had different peaks. Let’s take a look at other control pitchers throughout history. As I’ve already said, Kershaw isn’t going to match his 2011-2015 peak. I say that with 100% confidence, so instead I decided to compare his current career numbers to other pitcher’s career numbers.
| Name | ERA+ | IP | BB% | K% | fWAR | mWAR(5-year peak) |
|---|---|---|---|---|---|---|
| Clayton Kershaw | 159 | 2096.1 | 6.5% | 27.6% | 61.6 | 37.6 |
| Greg Maddux | 132 | 5008.1 | 4.9% | 16.5% | 116.7 | 42.8 |
| Roy Halladay | 131 | 2749.1 | 5.2% | 18.8% | 65.2 | 35.4 |
| Curt Schilling | 127 | 3261.0 | 5.4% | 23.5% | 79.8 | 34.0 |
| Bret Saberhagen | 126 | 2562.2 | 4.5% | 16.5% | 55.3 | 28.9 |
| Juan Marichal | 123 | 3507.1 | 4.9% | 16.1% | 61.2 | 34.5 |
| Mike Mussina | 123 | 3562.2 | 5.4% | 19.3% | 82.2 | 29.5 |
| Cliff Lee | 118 | 2156.2 | 5.2% | 20.5% | 47.4 | 32.3 |
| Don Drysdale | 117 | 3432.0 | 5.5% | 17.3% | 59.3 | 28.5 |
| Mark Buerhle | 117 | 3283.1 | 5.4% | 13.6% | 51.9 | 24.5 |
| Fergie Jenkins | 115 | 4500.2 | 5.4% | 17.4% | 80.5 | 37.9 |
I’ve chosen pitchers with a walk rate less than 5.5% because I can. Maddux is tied for 2nd in this list, only behind Saberhagen. From this chart, you can see that Maddux’s ERA+ doesn’t stand out above the rest of my arbitrarily defined control pitchers. What does stand out is his WAR. His total career WAR is twice as much as other control pitchers. You could argue that this is because of his large amount of innings pitched(5008.1) and you’d be right. But take note of the IP count of the other control pitchers. Fergie Jenkins is the only one who is within two or three seasons of Maddux in innings pitched. Maddux pitched with stellar control for his entire career and that was how he accumulated so much value. It’s hard to be a control pitcher for a long time, because as your speed drops your control needs to increase tenfold.
Just in case you aren’t convinced because his IP is much higher than the other control pitchers, I also included the last column to show the best five year stretch of each pitcher’s career. Once again, Maddux is at the top, and it’s by a wide margin. Halladay would need a season of 7.4 mWAR just to match Maddux’s best 5 year peak. That’s incredible when you consider that Halladay is a shoo-in HOF pitcher in his own right. No other control pitcher has really come close to matching Maddux’s career value and peak value. That’s insane! Can we really expect Kershaw to put up great numbers by switching from a strikeout pitcher to a control pitcher? I don’t think so. It’s insulting to Maddux’s career to say otherwise.
All of that to say that no, Kershaw can’t and won’t become Maddux-esque. Maddux is one of a kind. So let’s stop using the Greg Maddux Comp so much. Mad Dog deserves better.


About me
Education
- Georgia Institute of Technology — B.S. Computer Science (current – May 2020)
- Concentrating in the Information Internetworks and Systems & Architechure threads
- Greens Farms Academy — Diploma with a concentration in STEAM (2012 – 2016)
Interests
- Front-end UI — When IE6 isn't involved, I enjoy designing and implementing client-side user interfaces for both web applications and cross-platform mobile apps.
- Server-side APIs and data processing — With a more consistent and powerful environment than the client-side, I also enjoy writing REST APIs and data processing applications in addition to maintaining and operating my own servers and stacks.
- Robotics and embedded systems — I led software development for my high school's FIRST FTC robotics team for four years. I also have a great interest in embedded and time-critical systems especially in aircraft and terrestial vehicles. Over the summer of 2017, I interned at the RAIL Robotics Laboratory helping to develop a system for robots to learn directly from human demonstrations.
- Cryptography and security — I have experience with OpenPGP, RSA and elliptic curve public-key cryptography systems, symmetric block cipher encryption modes, and password and data integrity hashing / HMACing. My team's 2016 submission to Georgia Tech's annual hackathon, HackGT, won a prize for best use of encryption.
Skills
Technical
- Languages — HTML / CSS, JavaScript (and TypeScript), C#, Python, Java (familiarity with C++, PHP, and Rust)
- Tools — Git, Visual Studio / Xamarin, Node.js / npm, Arduino, MATLAB, Nginx, Docker
- Databases — Neo4j, MySQL, Redis, MongoDB, RethinkDB
- Operating Systems — Ubuntu / Debian Linux, Windows
Languages
- German — Fluent at B2 level as certified by the Goethe Institute
- French — Proficient
Hobbies
- Sports — Baseball (go Yankees!), soccer (go Atlanta United and Bayen München!), skiing, and fencing.
- Quadcopters — An interest carried over from a senior-year research project. I've built, flown, and tuned multiple quadcopters and am currently working on an onboard computer system for autonomous flight. Check out the custom PCB that I designed for this purpose!
- Airsoft — Recently picked this up thanks to the friendly guys in the Georgia Tech Airsoft Club.
- Photography — That's my hand-traced SVG image of a photo that I took of the Bank of America Building in Atlanta from Georgia Tech's campus at the top of the page.


An iOS application needs to be signed with a developer certificate issued by Apple before it can be installed on an iOS device, such as an iPhone or an iPad.
A provisioning profile is a file issued by Apple which allows you to deploy applications signed using your
identity to devices. It also grants specific permissions (entitlements) to those applications.
A provisionig profile usually has the .mobileprovision extension.


library(codesio)
This package defines I/O predicates that read from, or write to, a code-list. There are also predicates to open a stream referring to a code-list. The stream may be used with general Stream I/O predicates.
Exported predicates:
format_to_codes(
+Format,
:Arguments,
-Codes)
format_to_codes(
+Format,
:Arguments,
?S0,
?S)
format/3
.  Writes Term into a
code-list using write/2
. Codes is
unified with the list. Alternatively, S0 and S
are unified with the head and tail of the list,
respectively.
write_term_to_codes(
+Term,
-Codes,
+Options)
write_term_to_codes(
+Term,
?S0,
?S,
+Options)
format_to_codes/[3,4]
. Writes Term into a
code-list using write_term/3
and Options. Codes is
unified with the list. Alternatively, S0 and S are
unified with the head and tail of the list, respectively.
read_from_codes(
+Codes,
-Term)
read/2
. The Codes
must, as usual, be terminated by a full-stop, i.e. a `.',
possibly followed by layout-text.
read_term_from_codes(
+Codes,
-Term,
+Options)
read_from_term/3
and
Options. The Codes must, as usual, be terminated by a
full-stop, i.e. a `.', possibly followed by
layout-text.
open_codes_stream(
+Codes,
-Stream)
close/1
. The
list is copied to an internal buffer when the stream is
opened and must therefore be a ground code-list at that
point.
with_output_to_codes(
:Goal,
-Codes)
with_output_to_codes(
:Goal,
?S0,
?S)
with_output_to_codes(
:Goal,
-Stream,
?S0,
?S)
current_output
stream set to
a new stream. This stream writes to an internal buffer,
which is, after the successful execution of Goal, converted to a
list of character codes. Codes is unified with the
list, alternatively S0 and S are unified with
the head and tail of the list, respectively.
with_output_to_codes/4
also passes the stream in the
Stream argument. It can be used only by Goal for
writing.


public class Complex
extends java.lang.Object
ComplexInstance
| Modifier and Type | Field and Description |
|---|---|
static Complex |
I
The imaginary constant I
|
double |
im
The imaginary part of this complex number.
|
double |
re
The real part of this imaginary number
|
| Constructor and Description |
|---|
Complex()
Creates a new Complex number with 0 for its real and imaginary part.
|
Complex(double re,
double im)
Creates a new Complex number with the supplied real and complex part.
|
| Modifier and Type | Method and Description |
|---|---|
double |
abs()
Takes the absolute value of this complex number.
|
void |
conjugate()
Takes the conjugate of this complex number.
|
void |
minus(Complex b)
Subtracts a complex number from this one.
|
static Complex |
multiply(Complex a,
Complex b)
Multiplies two complex numbers and return the resulting complex number.
|
static Complex |
multiply(Complex a,
double d)
Multiplies a complex number with a real value.
|
void |
plus(Complex b)
Adds a complex number to this one.
|
static Complex |
plus(Complex a,
Complex b)
Adds two complex numbers and return the result.
|
void |
times(Complex b)
Multiplies this complex number with another one.
|
void |
times(double alpha)
Multiplies with real number
|
java.lang.String |
toString() |
public double im
public double re
public static final Complex I
public Complex(double re, double im)
re
- the real partim
- the complex partpublic Complex()
public java.lang.String toString()
toString
in class java.lang.Object
public double abs()
public void plus(Complex b)
b
- the number to add to this one.public void minus(Complex b)
b
- the number to subtract from this one.public void times(Complex b)
b
- the number to multiply with.public void times(double alpha)
alpha
- the real number to multiply with.public void conjugate()
public static Complex plus(Complex a, Complex b)
a
- first complex numberb
- second complex numberpublic static Complex multiply(Complex a, double d)
a
- the complex numberd
- the real valueCopyright © 2006-2014 - Thomas Abeel - All Rights Reserved.


Study Title: Predictive typing with long suggestions
Researcher: Kenneth C. Arnold
Participation is voluntary: It is your choice whether or not to participate in this research. If you choose to participate, you may change your mind and leave the study at any time by returning the HIT. Refusal to participate or stopping your participation will involve no penalty or loss of benefits to which you are otherwise entitled. Note that for technical reasons we can only provide payment for fully completed HITs. Participants must be adults 18+.
What is the purpose of this research? We are studying how different touchscreen keyboards affect the writing process, writing outcome, and the author’s subjective experience, and how psychological factors may influence those effects.
What can I expect if I take part in this research? What is the time commitment? You will provide feedback on one or more writing samples produced by prior study participants.
What are the risks and possible discomforts? There are no anticipated risks beyond normal use of a computer or smartphone. Please take a break if you start to feel any discomfort from prolonged computer use.
Are there any benefits from being in this research study? We cannot promise any benefits to you or others from your taking part in this research. The results of this research may inform future advances in computer systems that assist writing.
Will I be compensated for participating in this research? The target payment for this task is $9/hr. Your payment will in no way depend on how you use the unusual features of the app being tested, if any. The reward for a specific study will be determined based on the estimated time to complete the task.
If I take part in this research, how will my privacy be protected? What happens to the information you collect? We will not record any personally identifying information. De-identified data may be shared with other researchers and other participants in this study.
The MTurk platform provides access to your worker ID, which in some cases can be mapped to your name and work history. We are relying on the security of that platform to maintain your confidentiality. To partially mitigate the risk of re-identification, we will assign you a random identifier specific to this study and delete the mapping between this identifier and your worker ID 6 months after the experiment concludes. But if the security of the MTurk platform or our account is breached, it may be possible to re-identify your work, as with any MTurk task. Please make sure to mark your Amazon Profile as private if you do not want it to be found from your Mechanical Turk Worker ID.
If I have any questions, concerns or complaints about this research study, who can I talk to? The researcher for this study is Kenneth C. Arnold who can be reached at<EMAIL_ADDRESS>617-299-6536, or 33 Oxford St MD 240, Cambridge MA 02138. The faculty sponsor is Krzysztof Z. Gajos who can be reached at<EMAIL_ADDRESS>This research has been reviewed and approved by the Harvard University Area Institutional Review Board (“IRB”). You may talk to them at<PHONE_NUMBER> or<EMAIL_ADDRESS>if:
Someone wrote this description for one of the {{curTask.images.length}} images below:
“{{curTask.description}}”
Try to guess which of the {{curTask.images.length}} images this description was written for. Click an image to guess it. Try to get it in as few guesses as possible.
If any of the images doesn't load, make a note in the feedback section and submit the HIT incomplete.


Team CESA organized a Lockdown Film Making competition - an Open for all contest. The contest was publicized and organized with the notion : Make a short film only inside your home.The challenge is how creative you can get using no other location other than your home and only a phone camera. Theme was Open theme for wider audience reach. Time limit to each short film was a max of 10 minutes.
Team CESA organized a Blog writing competition - an Open for all contest. The contest was publicized and organized with the notion : To provide a platform to students for expressing their views right from heart on society relevant topics.
Team CESA organized a Quarantine Quiz - an Open for all contest. The contest was publicized and organized with the notion : as a series of quizzes organised to test your knowledge on a variety of fun and interesting topics. Main attractions were MCQ based relevant questions that allowed every age group to participate enthusiastically.
| Quiz No. | Name | Date |
|---|---|---|
| 1 | Adarsh Vishwakarma | 1 June, 2020 |
| 2 | Chirag Kriplani | 3 June, 2020 |
| 3 | Dhanashree Munot | 5 June, 2020 |
| 4 | Akshay Belhekar | 7 June, 2020 |