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How to add multiple files to Git at the same time
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answered Oct 24 '13 at 20:39
daxdax
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How to count the number of true elements in a NumPy bool array
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3 Answers
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Installing Numpy on 64bit Windows 7 with Python 2.7.3 [closed]
...ks like the only 64 bit windows installer for Numpy is for Numpy version 1.3.0 which only works with Python 2.6
6 Answers
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Extract a dplyr tbl column as a vector
...s2 %>% pull(5)
Resulting in...
[1] 21.0 21.0 22.8 21.4 18.7 18.1 14.3 24.4 22.8 19.2 17.8 16.4 17.3 15.2 10.4 10.4 14.7 32.4 30.4 33.9 21.5 15.5 15.2 13.3 19.2 27.3 26.0 30.4 15.8 19.7 15.0 21.4
And it also works fine with data frames:
> mtcars %>% pull(5)
[1] 3.90 3.90 3.85 3.08 3....
Counting the number of True Booleans in a Python List
... is equal to 1.
>>> sum([True, True, False, False, False, True])
3
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How to get execution time in rails console?
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Python 3 turn range to a list
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235
You can just construct a list from the range object:
my_list = list(range(1, 1001))
This is ...
Equivalent of .try() for a hash to avoid “undefined method” errors on nil? [duplicate]
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edited May 1 '13 at 4:29
mkenyon
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answered ...
Concatenating two lists - difference between '+=' and extend()
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edited May 13 '15 at 0:26
jesterjunk
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answered Se...
INSERT IF NOT EXISTS ELSE UPDATE?
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330
Have a look at http://sqlite.org/lang_conflict.html.
You want something like:
insert or repl...