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pandas read_csv and filter columns with usecols
...das as pd
from StringIO import StringIO
csv = r"""dummy,date,loc,x
bar,20090101,a,1
bar,20090102,a,3
bar,20090103,a,5
bar,20090101,b,1
bar,20090102,b,3
bar,20090103,b,5"""
df = pd.read_csv(StringIO(csv),
header=0,
index_col=["date", "loc"],
usecols=["date", "loc", "x"],
...
What happens to a github student account's repositories at the end of 2 years?
...count?
– indivisible
Jun 21 '14 at 19:30
3
Ok, so the user can manually make the repo's public pr...
What is the difference between user variables and system variables?
... Hope this helps.
– user541686
Dec 19 '10 at 4:07
why dont system environment variables have percentage signs while us...
Maximum concurrent Socket.IO connections
...I made, similar to the test I used: https://gist.github.com/jmyrland/5535279
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What is the meaning of symbol $ in jQuery?
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139
The jQuery object :)
From the jQuery documentation:
By default, jQuery uses "$" as a shortc...
How to change JFrame icon [duplicate]
...
answered Oct 23 '09 at 17:15
BFreeBFree
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How to style readonly attribute with CSS?
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What is the Scala identifier “implicitly”?
...
edited Sep 23 '11 at 11:39
answered Oct 4 '10 at 22:05
ret...
Exotic architectures the standards committees care about
...igrated all their Univac software.
Key points:
36-bit words
CHAR_BIT == 9
one's complement
72-bit non-IEEE floating point
separate address space for code and data
word-addressed
no dedicated stack pointer
Don't know if they offer a C++ compiler though, but they could.
And now a link to a rec...
How to check if a value exists in a dictionary (python)
...
394
>>> d = {'1': 'one', '3': 'three', '2': 'two', '5': 'five', '4': 'four'}
>>> ...