大约有 48,000 项符合查询结果(耗时:0.0578秒) [XML]
Rename specific column(s) in pandas
...]
Timings:
%%timeit
df.rename(columns={'gdp':'log(gdp)'}, inplace=True)
10000 loops, best of 3: 168 µs per loop
%%timeit
df.columns = ['log(gdp)' if x=='gdp' else x for x in df.columns]
10000 loops, best of 3: 58.5 µs per loop
...
How to delete a record in Django models?
...
answered Sep 27 '10 at 16:51
WolphWolph
66.6k99 gold badges120120 silver badges141141 bronze badges
...
How do I measure execution time of a command on the Windows command line?
...
I don't see the command in Windows 10, nor do I easily find a Resource Kit for Win 10. Does anyone know how to get this for 10?
– Jay Imerman
Jan 25 '18 at 14:35
...
Detect Chrome extension first run / update
...
answered Mar 8 '10 at 14:03
Mohamed MansourMohamed Mansour
35k99 gold badges107107 silver badges8585 bronze badges
...
Else clause on Python while statement
...
|
edited Jul 21 '10 at 7:48
answered Jul 21 '10 at 2:51
...
What is the difference between “text” and new String(“text”)?
...
answered Jun 16 '10 at 10:30
polygenelubricantspolygenelubricants
336k117117 gold badges535535 silver badges606606 bronze badges
...
Deploy a project using Git push
...it's accessible.
– Jeff Ferland
May 10 '10 at 21:41
39
Alternatively just make the public directo...
optional local variables in rails partial templates: how do I get out of the (defined? foo) mess?
...
answered Jan 13 '10 at 23:12
jonniijonnii
26.8k55 gold badges7575 silver badges106106 bronze badges
...
Why do I have to access template base class members through the this pointer?
...thered to look up. :) +1
– jalf
Jan 10 '11 at 3:41
20
@jalf: is there such a thing as the C++QTWB...
ReadOnlyCollection or IEnumerable for exposing member collections?
...roduced by Skip(0)
– shojtsy
Feb 1 '10 at 23:45
6
-1 Is it just me or is this an answer to a diff...
