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Drop columns whose name contains a specific string from pandas DataFrame
... toto test2 riri
0 0.923249 0.572528 0.845464 0.144891
1 0.020438 0.332540 0.144455 0.741412
cols = [c for c in df.columns if c.lower()[:4] != 'test']
df=df[cols]
print df
toto riri
0 0.572528 0.144891
1 0.332540 0.741412
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How to get thread id from a thread pool?
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answered Jul 20 '10 at 20:59
skaffmanskaffman
374k9292 gold badges779779 silver badges744744 bronze badges
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Why are elementwise additions much faster in separate loops than in a combined loop?
...482 Harpertown @ 3.2 GHz:
#define ALLOCATE_SEPERATE
#define ONE_LOOP
00600020
006D0020
007A0020
00870020
seconds = 6.206
#define ALLOCATE_SEPERATE
//#define ONE_LOOP
005E0020
006B0020
00780020
00850020
seconds = 2.116
//#define ALLOCATE_SEPERATE
#define ONE_LOOP
00570020
00633520
006F6A20
007B9F20...
JavaScript query string [closed]
...ry-object
– thexfactor
Feb 3 '14 at 20:35
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Command-line Tool to find Java Heap Size and Memory Used (Linux)?
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edited Feb 1 '17 at 20:03
cybersoft
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answered Oct 9 '12 a...
Can I call memcpy() and memmove() with “number of bytes” set to zero?
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answered Sep 20 '10 at 13:32
Mike SeymourMike Seymour
230k2424 gold badges396396 silver badges602602 bronze badges
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Dictionaries and default values
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Solomon Ucko
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answered Feb 20 '12 at 9:44
MattHMattH
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Unicode equivalents for \w and \b in Java regular expressions?
...er PCRE-based regex engine:
Regex 001A 0085 00A0 2029
J P J P J P J P
\s 1 1 0 1 0 1 0 1
\pZ 0 0 0 0 1 1 1 1
\p{Zs} 0 0 0 0 1 1 0 0
\p{Spac...
How do I get an element to scroll into view, using jQuery?
...ent):
var offset = $(this).offset(); // Contains .top and .left
Subtract 20 from top and left:
offset.left -= 20;
offset.top -= 20;
Now animate the scroll-top and scroll-left CSS properties of <body> and <html>:
$('html, body').animate({
scrollTop: offset.top,
scrollLeft: of...
Can I change the size of UIActivityIndicator?
...f Apple's standardized interface idioms - whether an activity indicator is 20px or 15px won't change a user's interpretation of what's going on.
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