大约有 900 项符合查询结果（耗时：0.0251秒） [XML]
Pandas percentage of total with groupby
...les'].sum().rename("count")
c / c.groupby(level=0).sum()
3.42 ms ± 16.7 µs per loop
(mean ± std. dev. of 7 runs, 100 loops each)
2nd Paul H
state_office = df.groupby(['state', 'office_id']).agg({'sales': 'sum'})
state = df.groupby(['state']).agg({'sales': 'sum'})
state_office.div(state, lev...
Get folder name from full file path
...red Mar 8 '11 at 6:53
Øyvind BråthenØyvind Bråthen
52.2k2525 gold badges113113 silver badges138138 bronze badges
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Get the (last part of) current directory name in C#
...ot exactly what the question was about.
– Jakob Möllås
May 16 '11 at 13:47
...
Creating a zero-filled pandas data frame
...index=orig_df.index, columns=orig_df.columns)
10000 loops, best of 3: 60.2 µs per loop
Compare to:
In [4]: %timeit d = pd.DataFrame(0, index = np.arange(10), columns=columns)
10000 loops, best of 3: 110 µs per loop
In [5]: temp = np.zeros((10, 10))
In [6]: %timeit d = pd.DataFrame(temp, column...
Generate 'n' unique random numbers within a range [duplicate]
...e whole range. For example: %timeit random.sample(xrange(10000), 3) = 4.92 µs per loop, %timeit random.sample(range(10000), 3) = 126 µs per loop
– gaborous
May 16 '15 at 19:51
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Can I force pip to reinstall the current version?
I've come across situations where a current version of a package seems not to be working and requires reinstallation. But pip install -U won't touch a package that is already up-to-date. I see how to force a reinstallation by first uninstalling (with pip uninstall ) and then installing, but is th...
How to clear Facebook Sharer cache?
...red Apr 29 '16 at 9:59
Thorkil VærgeThorkil Værge
38622 gold badges88 silver badges2020 bronze badges
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Git merge two local branches
... git checkout branch-A is more understandable
– Erdinç Çorbacı
Mar 22 '18 at 8:34
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__getattr__ on a module
... answered Mar 15 '10 at 13:24
Håvard SHåvard S
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Eclipse syntax highlighting preferences save and restore
...ered Feb 23 '17 at 15:48
ℛɑƒæĿᴿᴹᴿℛɑƒæĿᴿᴹᴿ
1,92622 gold badges2424 silver badges3838 bronze badges
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