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How to split/partition a dataset into training and test datasets for, e.g., cross validation?
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If you want to split the data set once in two halves, you can use numpy.random.shuffle, or numpy...
TimeSpan ToString format
Just curious, is there a format string I can use to output something like "5h 3m 30s"?
7 Answers
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How to build an android library with Android Studio and gradle?
...droid please?
– JJD
Oct 8 '13 at 14:54
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Which parts of Real World Haskell are now obsolete or considered bad practice?
...en.
In doubt, check the documentation.
Chapter 14. Monads & Chapter 15. Programming with monads
Code breaking: Applicative m => Monad m
As of GHC 7.10, Applicative is now a superclass of Monad, something that wasn't planned in 2007.
In GHC 7.10, Applicative will become a superclass of...
How to select where ID in Array Rails ActiveRecord without exception
...unctions works without throwing exceptions.
Comment.find_all_by_id([2, 3, 5])
will work even if some of the ids don't exist. This works in the
user.comments.find_all_by_id(potentially_nonexistent_ids)
case as well.
Update: Rails 4
Comment.where(id: [2, 3, 5])
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Question mark and colon in JavaScript
...en" and : as "else".
Your code is equivalent to
if (max != 0)
hsb.s = 255 * delta / max;
else
hsb.s = 0;
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What's with 181783497276652981 and 8682522807148012 in Random (Java 7)?
Why were 181783497276652981 and 8682522807148012 chosen in Random.java ?
3 Answers
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What is the claims in ASP .NET Identity
... more information, please visit http://msdn.microsoft.com/en-us/library/ff359101.aspx
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Maven parent pom vs modules pom
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Pascal ThiventPascal Thivent
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nginx error connect to php5-fpm.sock failed (13: Permission denied)
I update nginx to 1.4.7 and php to 5.5.12 , After that I got the 502 error . Before I update everything works fine.
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