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Weighted random numbers

..., you remove it, you will probably want a custom algorithm. Will's answer https://stackoverflow.com/a/1761646/837451 avoids this overhead but will be slower to draw from than the C++11 because it can't use binary search. To see that it does this, you can see the relevant lines (/usr/include/c++/5...
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WatiN or Selenium? [closed]

... Neither. Use Coypu. It wraps Selenium. Much more durable. https://github.com/featurist/coypu Update Ye Oliver you're right. Ok why's it better? Personally I've found the Selenium driver for IE in particular to be very fragile - there's a number of 'standard' driver exceptions that ...
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Is there a rule-of-thumb for how to divide a dataset into training and validation sets?

... approximately 0.632, provided that n is not too small, as explained here: https://stats.stackexchange.com/a/88993/16263 For a sample of n=250, the probability of an individual case being selected for a re-sample to 4 digits is 0.6329. For a sample of n=20000, the probability is 0.6321. ...
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Is there any way to enforce typing on NSArray, NSMutableArray, etc.?

... Have a look at https://github.com/tomersh/Objective-C-Generics, a compile-time (preprocessor-implemented) generics implementation for Objective-C. This blog post has a nice overview. Basically you get compile-time checking (warnings or erro...
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What is a practical use for a closure in JavaScript?

...lt;/span> times! </div> </html> Reference: https://www.w3schools.com/js/js_function_closures.asp share | improve this answer | follow ...
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How to find where gem files are installed

...e => false - :bulk_threshold => 1000 - REMOTE SOURCES: - https://rubygems.org/ - SHELL PATH: - /Users/ttm/.rbenv/versions/2.0.0-p247/bin - /Users/ttm/.rbenv/libexec - /Users/ttm/.rbenv/plugins/ruby-build/bin - /Users/ttm/perl5/perlbrew/bin - /Users/ttm/pe...
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Java: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification

I have a class that will download a file from a https server. When I run it, it returns a lot of errors. It seems that I have a problem with my certificate. Is it possible to ignore the client-server authentication? If so, how? ...
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Android - Handle “Enter” in an EditText

... This page describes exactly how to do this. https://developer.android.com/training/keyboard-input/style.html Set the android:imeOptions then you just check the actionId in onEditorAction. So if you set imeOptions to 'actionDone' then you would check for 'actionId == E...
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How to combine two or more querysets in a Django view?

...th the the Q function you should be able to perform any OR query you need: https://docs.djangoproject.com/en/1.3/topics/db/queries/#complex-lookups-with-q-objects – Josh Russo Sep 18 '11 at 22:41 ...
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Handle Guzzle exception and get HTTP body

...eUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...