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How do I recursively delete a directory and its entire contents (files + sub dirs) in PHP?
...ecursive iterator.
– salathe
Mar 1 '16 at 20:09
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How to test android referral tracking?
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edited Jan 10 '16 at 12:36
Mykola
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ans...
Performance difference between IIf() and If
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edited Dec 16 '14 at 16:03
Hannele
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Switch on ranges of integers in JavaScript [duplicate]
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Return multiple columns from pandas apply()
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answered Feb 4 '16 at 18:17
Nelz11Nelz11
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Have bash script answer interactive prompts [duplicate]
...er to this question.
– cloudxix
May 16 at 21:02
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Get column index from column name in python pandas
... Excel coordinates.
– Alejandro
Oct 16 '17 at 18:41
I use this when making an array of subplots. One subplot from the...
Advantages of stateless programming?
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168
Read Functional Programming in a Nutshell.
There are lots of advantages to stateless programm...
Why is enum class preferred over plain enum?
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edited Aug 16 at 9:38
Jacob Eriksson
533 bronze badges
answered Aug 20 '13 at 13:06
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Sample random rows in dataframe
...2592415
6 0.7572246 -0.5463655
7 -0.8996483 0.4231117
8 -1.0356774 -0.1640883
9 -0.3983045 0.7157506
10 -0.9060305 2.3234110
Then select some rows at random:
> df[sample(nrow(df), 3), ]
X1 X2
9 -0.3983045 0.7157506
2 -1.1334614 -0.1973846
10 -0.9060305 2.3234110
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