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pandas DataFrame: replace nan values with average of columns
... A B C
0 -0.166919 0.979728 -0.632955
1 -0.297953 -0.912674 -1.365463
2 -0.120211 -0.540679 -0.680481
3 NaN -2.027325 1.533582
4 NaN NaN 0.461821
5 -0.788073 NaN NaN
6 -0.916080 -0.612343 NaN
7 -0.887858 1.033826 NaN
8 1.948430 1.025011...
Namespace + functions versus static methods on a class
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248
By default, use namespaced functions.
Classes are to build objects, not to replace namespaces....
Permanently add a directory to PYTHONPATH?
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answered Aug 4 '10 at 2:33
Alex MartelliAlex Martelli
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Unpacking array into separate variables in JavaScript
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answered Aug 6 '10 at 9:24
Mathias BynensMathias Bynens
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How do I use reflection to invoke a private method?
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edited Aug 19 '14 at 14:02
gunr2171
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Difference between List, List, List, List, and List
...t took an array of a certain type, and returns an array of the same type.
4) You can't mix oranges and apples. You would be able to add an Object to your String list if you could pass a string list to a method that expects object lists. (And not all objects are strings)
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Why is it considered a bad practice to omit curly braces? [closed]
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184
Actually, the only time that's ever really bit me was when I was debugging, and commented out ba...
How to implement Enums in Ruby?
...declare the constants within that.
module Foo
BAR = 1
BAZ = 2
BIZ = 4
end
flags = Foo::BAR | Foo::BAZ # flags = 3
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Abusing the algebra of algebraic data types - why does this work?
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140
Disclaimer: A lot of this doesn't really work quite right when you account for ⊥, so I'm goin...
Finding what branch a Git commit came from
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