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how do you filter pandas dataframes by multiple columns
...={}
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)...
Javadoc: package.html or package-info.java
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Any particular reason why its preferred?
– TheLQ
Sep 5 '10 at 2:24
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Explicit specialization in non-namespace scope [duplicate]
...in this case - explicit specializations have to be at namespace scope. C++03, §14.7.3/2:
An explicit specialization shall be declared in the namespace of which the template is a member, or, for member templates, in the namespace of which the enclosing class or enclosing class template is a memb...
Best way to clear a PHP array's values
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13 Answers
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How can I delete Docker's images?
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Sunny
19511 silver badge1313 bronze badges
answered Mar 30 '15 at 22:15
user1378912user1378912
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Disable building workspace process in Eclipse
...n the same issue (with building automatically activated)
Note that bug 329657 (open in 2011, in progress in 2014) is about interrupting a (too lengthy) build, instead of cancelling it:
There is an important difference between build interrupt and cancel.
When a build is cancelled, it...
What is the purpose of static keyword in array parameter of function like “char s[static 10]”?
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The Standard text, which covers both of the above cases, is in C11 6.7.6.3/7 (was 6.7.5.3/7 in C99):
A declaration of a parameter as ‘‘array of type’’ shall be adjusted to ‘‘qualified pointer to type’’, where the type qualifiers (if any) are those specified within the [ and ] o...
Why is a round-trip conversion via a string not safe for a double?
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3 Answers
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How to extract numbers from a string in Python?
...to extract only positive integers, try the following:
>>> str = "h3110 23 cat 444.4 rabbit 11 2 dog"
>>> [int(s) for s in str.split() if s.isdigit()]
[23, 11, 2]
I would argue that this is better than the regex example because you don't need another module and it's more readable b...
How to add an extra source directory for maven to compile and include in the build jar?
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edited Sep 29 '15 at 18:36
brabenetz
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answered Mar 17 '12 at 19:25
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