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Syntax for creating a two-dimensional array
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edited May 21 '13 at 18:04
Alexis C.
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How to check if a value exists in a dictionary (python)
... T(lambda : 'one' in d.itervalues()).repeat()
[0.28107285499572754, 0.29107213020324707, 0.27941107749938965]
>>> T(lambda : 'one' in d.values()).repeat()
[0.38303399085998535, 0.37257885932922363, 0.37096405029296875]
>>> T(lambda : 'one' in d.viewvalues()).repeat()
[0.32004380226...
Determine the data types of a data frame's columns
...use ?str(). To explore some examples, let's make some data:
set.seed(3221) # this makes the example exactly reproducible
my.data <- data.frame(y=rnorm(5),
x1=c(1:5),
x2=c(TRUE, TRUE, FALSE, FALSE, FALSE),
X3=letters[1:5])
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how do I initialize a float to its max/min value?
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answered Apr 21 '10 at 16:11
YacobyYacoby
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Delete element in a slice
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answered Jul 29 '14 at 21:47
davedave
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Output data from all columns in a dataframe in pandas [duplicate]
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In ipython, I use this to print a part of the dataframe that works quite well (prints the first...
Map Tiling Algorithm
...4905user1884905
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Python using enumerate inside list comprehension
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edited May 27 '12 at 21:17
answered May 27 '12 at 21:05
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Generate a random double in a range
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answered Sep 9 '10 at 21:17
mobmob
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C char array initialization
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answered Sep 8 '13 at 21:51
ouahouah
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