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Numpy: Get random set of rows from 2D array
...a similar answer to the one Hezi Rasheff provided, but simplified so newer python users understand what's going on (I noticed many new datascience students fetch random samples in the weirdest ways because they don't know what they are doing in python).
You can get a number of random indices from y...
How to calculate number of days between two given dates?
...d1 - d0
print(delta.days)
The relevant section of the docs:
https://docs.python.org/library/datetime.html.
See this answer for another example.
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Bootstrap 3: pull-right for col-lg only
... edited Apr 15 '16 at 13:05
André Dion
18.2k77 gold badges5151 silver badges5757 bronze badges
answered Mar 17 '15 at 8:25
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Convert from MySQL datetime to another format with PHP
...hich people who come to this page actually have.
– Clément
Apr 29 '14 at 22:53
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Android, canvas: How do I clear (delete contents of) a canvas (= bitmaps), living in a surfaceView?
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@Viktor Lannér: If you call mSurfaceHolder.unlockCanvasAndPost(c) and then c = mSurfaceHolder.lockCanvas(null), then the new c does not contain the same thing as the previous c. You can’t update just a part of a SurfaceView, which is ...
How can I filter lines on load in Pandas read_csv function?
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If you are on linux you can use grep.
# to import either on Python2 or Python3
import pandas as pd
from time import time # not needed just for timing
try:
from StringIO import StringIO
except ImportError:
from io import StringIO
def zgrep_data(f, string):
'''grep multipl...
Can you make just part of a regex case-insensitive?
...e and multi-line mode.
Not all regex flavors support this. JavaScript and Python apply all mode modifiers to the entire regular expression. They don't support the (?-ismx) syntax, since turning off an option is pointless when mode modifiers apply to the whole regular expressions. All options are of...
Difference between “and” and && in Ruby?
...uld be used for very specific cases only.
– Marc-André Lafortune
Apr 9 '12 at 3:05
10
Another go...
Perform .join on value in array of objects
... I could help :) for what it's worth, just like map/reduce/filter are not 'pythonic' and comprehensions are the other way holds. In JavaScript's new spec in progress (Harmony) as well as some browsers already (firefox) you have pythonic comprehensions. You can do [x.name for x of users] (spec wiki.e...
Multiple file-extensions searchPattern for System.IO.Directory.GetFiles
...e a tested (working) regular expression
– Junior Mayhé
Aug 17 '12 at 15:12
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