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Principal component analysis in Python
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You might have a look at MDP.
I have not had the chance to test it myself, but I've bookmarked it exactly for the PCA functionality.
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“A project with an Output type of Class Library cannot be started directly”
...ates of Projects).
In the newly added project, you can implement logic to test your Class Library.
Output type of the project you can find and change by the following steps:
Right click on project in Solution Explorer -> Properties.
In opened tab with properties select Application and there w...
How do I print the type or class of a variable in Swift?
...ind _stdlib_getTypeName()? The integrated REPL no longer exists, swift-ide-test doesn't exist either, and Xcode's printing of the Swift module elides _-prefixed values.
– Lily Ballard
Aug 21 '14 at 19:28
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node.js require all files in a folder?
... /fields full of files with a single class each, ex:
fields/Text.js -> Test class
fields/Checkbox.js -> Checkbox class
Drop this in fields/index.js to export each class:
var collectExports, fs, path,
__hasProp = {}.hasOwnProperty;
fs = require('fs');
path = require('path');
collect...
Replace one substring for another string in shell script
...ould represent itself, not a newline. I don't have Bash handy right now to test, but you should be able to write something like, $STRING="${STRING/$'\n'/<br />}". (Though you probably want STRING// -- replace-all -- instead of just STRING/.)
– ruakh
Jul 2...
PHP Function Comments
...apitalize and do not end with a
* period:
* + the string to be tested
*
* When writing a phrase followed by a sentence, do not capitalize the
* phrase, but end it with a period to distinguish it from the start
* of the next sentence:
* + the string to be tested...
JSON.parse vs. eval()
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I tested JSON.parse() in Firefox 28 and Chromium 33 on my Linux Mint system. It was 2x as fast as eval() in Firefox and 4x as fast in Chromium. I'm not sure what source code you're posting, but they're not the same thing in m...
How do I profile memory usage in Python?
...con', 1220), ('dis', 1002), ('pro', 809)]
Top 3 lines
#1: scratches/memory_test.py:37: 6527.1 KiB
words = list(words)
#2: scratches/memory_test.py:39: 247.7 KiB
prefix = word[:3]
#3: scratches/memory_test.py:40: 193.0 KiB
counts[prefix] += 1
4 other: 4.3 KiB
Total allocated size: 6972.1 ...
How can I detect the encoding/codepage of a text file
...(because of its english-centric bias and its lack of statistical/empirical testing), but it's worked very well for me, especially for processing uploaded CSV data:
http://www.architectshack.com/TextFileEncodingDetector.ashx
Advantages:
BOM detection built-in
Default/fallback encoding customizabl...
Multiple Inheritance in PHP
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What about the magical _call(),_get(), __set() methods? I have not yet tested this solution but what if you make a multiInherit class. A protected variable in a child class could contain an array of classes to inherit. The constructor in the multi-interface class could create instances of each o...