大约有 2,100 项符合查询结果(耗时:0.0122秒) [XML]
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
...
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
...
Git merge two local branches
... git checkout branch-A is more understandable
– Erdinç Çorbacı
Mar 22 '18 at 8:34
add a comment
|
...
__getattr__ on a module
... answered Mar 15 '10 at 13:24
Håvard SHåvard S
20.4k55 gold badges5555 silver badges6767 bronze badges
...
The opposite of Intersect()
...d Apr 11 '11 at 10:56
Øyvind BråthenØyvind Bråthen
52.2k2525 gold badges113113 silver badges138138 bronze badges
...
Eclipse syntax highlighting preferences save and restore
...ered Feb 23 '17 at 15:48
ℛɑƒæĿᴿᴹᴿℛɑƒæĿᴿᴹᴿ
1,92622 gold badges2424 silver badges3838 bronze badges
...
Delete last char of string
...blem should not exist if you dont create a trailing char. Check @Øyvind Bråthen solution if you are in OP's boat.
– aloisdg moving to codidact.com
Jun 6 '18 at 9:48
add a co...
How do I create a copy of an object in PHP?
It appears that in PHP objects are passed by reference. Even assignment operators do not appear to be creating a copy of the Object.
...
