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How to count the number of true elements in a NumPy bool array
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265
You have multiple options. Two options are the following.
numpy.sum(boolarr)
numpy.count_nonzer...
Connect to a locally built Jekyll Server using mobile devices in the LAN
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edited May 5 at 17:24
answered May 17 '13 at 12:11
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Converting a column within pandas dataframe from int to string
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5 Answers
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Simple C example of doing an HTTP POST and consuming the response
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+50
A message has a header part and a message body separated by a blank line. The blank line is ALWAYS needed even if there is no messag...
Iterate a list with indexes in Python
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>>> a = [3,4,5,6]
>>> for i, val in enumerate(a):
... print i, val
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What's the (hidden) cost of Scala's lazy val?
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answered Jun 15 '10 at 7:51
oxbow_lakesoxbow_lakes
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How does numpy.histogram() work?
...n choose them automatically from the input, if none are specified. If bins=5, for example, it will use 5 bins of equal width spread between the minimum input value and the maximum input value.
The input values are 1, 2 and 1. Therefore, bin "1 to 2" contains two occurrences (the two 1 values), and ...
Dynamically select data frame columns using $ and a character value
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185
You can't do that kind of subsetting with $. In the source code (R/src/main/subset.c) it states:...
“ValueError: zero length field name in format” error in Python 3.0,3.1,3.2
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edited Apr 26 '15 at 22:12
answered Mar 27 '11 at 4:01
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Interpolating a string into a regex
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answered Sep 29 '08 at 18:53
Jonathan LonowskiJonathan Lonowski
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