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how do you filter pandas dataframes by multiple columns
...c={}
for g in ['male', 'female']:
dic[g]=defaultdict(dict)
for y in [2013, 2014]:
dic[g][y]=df[(df[Gender]==g) & (df[Year]==y)] #store the DataFrames to a dict of dict
EDIT:
A demo for your getDF:
def getDF(dic, gender, year):
return dic[gender][year]
print genDF(dic, 'male', 2014...
Does MySQL ignore null values on unique constraints?
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edited Oct 8 '18 at 13:50
Jon Schneider
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Check if value is in select list with JQuery
...n false?
– Grant Birchmeier
Apr 17 '13 at 17:58
14
Return false is used to break/end .each loop.
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Scala list concatenation, ::: vs ++
...+: object extractors.
– 0__
Jan 18 '13 at 9:25
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Define all functions in one .R file, call them from another .R file. How, if possible?
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139
You can call source("abc.R") followed by source("xyz.R") (assuming that both these files are i...
Maven check for updated dependencies in repository
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answered Aug 5 '13 at 20:44
rd3nrd3n
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Maintaining the final state at end of a CSS3 animation
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Christofer VilanderChristofer Vilander
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Problems with lib-icu dependency when installing Symfony 2.3.x via Composer
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edited Jun 25 '13 at 18:39
answered May 25 '13 at 19:26
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MySQL: @variable vs. variable. What's the difference?
...r" as in your example?
– confiq
May 13 '12 at 13:45
13
@confiq: there is none.
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Python Pandas merge only certain columns
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answered Jul 31 '13 at 18:46
Andy HaydenAndy Hayden
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