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how do you filter pandas dataframes by multiple columns

...sub-statements with (): males = df[(df[Gender]=='Male') & (df[Year]==2014)] To store your dataframes in a dict using a for loop: from collections import defaultdict dic={} for g in ['male', 'female']: dic[g]=defaultdict(dict) for y in [2013, 2014]: dic[g][y]=df[(df[Gender]==g) & ...
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Git submodule inside of a submodule (nested submodules)

... inamiyinamiy 2,40622 gold badges1313 silver badges1313 bronze badges ...
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Add and remove multiple classes in jQuery

... | edited Oct 3 '19 at 20:30 simhumileco 17.9k1010 gold badges9393 silver badges8484 bronze badges ans...
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How to create directories recursively in ruby?

... answered Sep 10 '10 at 15:49 Harmon WoodHarmon Wood 2,83911 gold badge1313 silver badges1212 bronze badges ...
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Difference between HTML “overflow : auto” and “overflow : scroll”

...l. – Johan Davidsson Mar 26 '13 at 10:50 1 There seems to be more difference than that, overlow: ...
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When is memoization automatic in GHC Haskell?

...situations. For example, consider the function f = \x -> let y = [1..30000000] in foldl' (+) 0 (y ++ [x]) GHC might notice that y does not depend on x and rewrite the function to f = let y = [1..30000000] in \x -> foldl' (+) 0 (y ++ [x]) In this case, the new version is much less effici...
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Bash conditionals: how to “and” expressions? (if [ ! -z $VAR && -e $VAR ])

...ypal singh 65.1k1919 gold badges9191 silver badges130130 bronze badges 10 ...
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Where does Xcode 4 store Scheme Data?

... answered Mar 14 '11 at 20:39 Cory ImdiekeCory Imdieke 12k88 gold badges3232 silver badges4646 bronze badges ...
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Why is there no std::stou?

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How can I use a local image as the base image with a dockerfile?

... answered Dec 10 '13 at 17:50 jpetazzojpetazzo 12.2k22 gold badges3737 silver badges4343 bronze badges ...