大约有 47,000 项符合查询结果（耗时：0.0767秒） [XML]
Initializing a static std::map in C++
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edited Jul 4 '13 at 13:08
answered Sep 26 '08 at 10:17
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npm windows install globally results in npm ERR! extraneous
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Kyle Robinson YoungKyle Robinson Young
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Get element inside element by class and ID - JavaScript
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Joseph MarikleJoseph Marikle
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Call apply-like function on each row of dataframe with multiple arguments from each row
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You can apply apply to a subset of the original data.
dat <- data.frame(x=c(1,2), y=c(3,4...
How to calculate moving average using NumPy?
... 2., 3., 4., 5., 6., 7., 8., 9., 10., 11.,
12., 13., 14., 15., 16., 17., 18.])
>>> moving_average(a, n=4)
array([ 1.5, 2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5,
10.5, 11.5, 12.5, 13.5, 14.5, 15.5, 16.5, 17.5])
So I guess the an...
Get specific line from text file using just shell script
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answered Oct 11 '13 at 21:40
KentKent
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How to convert index of a pandas dataframe into a column?
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tick tag obs
2016-02-26 C 2 0.0139
2016-02-27 A 2 0.5577
2016-02-28 C 6 0.0303
and you want to convert the 1st (tick) and 3rd (obs) levels in the index into columns, you would do:
>>> df.reset_index(level=['tick', 'obs'])
ti...
Why isn't std::initializer_list a language built-in?
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edited Mar 4 '13 at 15:13
answered Mar 4 '13 at 10:30
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How to keep index when using pandas merge
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Matthew SonMatthew Son
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PostgreSQL create table if not exists
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edited Aug 20 at 11:13
answered Sep 15 '11 at 22:34
E...