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How to remove all rows in a numpy.ndarray that contain non-numeric values
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>>> a = np.array([[1,2,3], [4,5,np.nan], [7,8,9]])
array([[ 1., 2., 3.],
[ 4., 5., nan],
[ 7., 8., 9.]])
>>> a[~np.isnan(a).any(axis=1)]
array([[ 1., 2., 3.],
[ 7., 8., 9.]])
and reassign this to a.
Explanation: np.is...
Check if a value exists in pandas dataframe index
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258
This should do the trick
'g' in df.index
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How to map and remove nil values in Ruby
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8 Answers
8
Active
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Java: function for arrays like PHP's join()?
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Starting from Java8 it is possible to use String.join().
String.join(", ", new String[]{"Hello", "World", "!"})
Generates:
Hello, World, !
Otherwise, Apache Commons Lang has a StringUtils class which has a join function which will join a...
Why was the arguments.callee.caller property deprecated in JavaScript?
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Pacerier
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answered Oct 25 '08 at 1:51
olliejolliej
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How to override trait function and call it from the overridden function?
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Maciej Pyszyński
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answered Aug 13 '12 at 17:30
ircmaxellircmaxell...
Java variable number or arguments for a method
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278
That's correct. You can find more about it in the Oracle guide on varargs.
Here's an example:
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Git pre-push hooks
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answered Nov 16 '10 at 16:48
ordnungswidrigordnungswidrig
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Multi-line commands in GHCi
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187
Most of the time, you can rely on type inference to work out a signature for you. In your examp...
javac : command not found
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edited Nov 28 '17 at 12:26
JulianHarty
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answered ...