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How to display full (non-truncated) dataframe information in html when converting from pandas datafr
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edited Sep 23 at 10:41
jahmia
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answered Aug 17 '14 at 18...
'float' vs. 'double' precision
...ary representation, not a decimal one.
Single precision (float) gives you 23 bits of significand, 8 bits of exponent, and 1 sign bit.
Double precision (double) gives you 52 bits of significand, 11 bits of exponent, and 1 sign bit.
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Finding row index containing maximum value using R
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See ?which.max
> which.max( matrix[,2] )
[1] 2
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Get PostGIS version
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edited Mar 28 '13 at 20:19
Brad Koch
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Filter dataframe rows if value in column is in a set list of values [duplicate]
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edited Feb 25 at 0:45
Harvey
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How to resize an image with OpenCV2.0 and Python2.6
I want to use OpenCV2.0 and Python2.6 to show resized images. I used and adopted this example but unfortunately, this code is for OpenCV2.1 and does not seem to be working on 2.0. Here my code:
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Does Ruby regular expression have a not match operator like “!~” in Perl?
...theless, it works:
irb(main):001:0> 'x' !~ /x/
=> false
irb(main):002:0> 'x' !~ /y/
=> true
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Process all arguments except the first one (in a bash script)
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692
Use this:
echo "${@:2}"
The following syntax:
echo "${*:2}"
would work as well, but is n...
Updating MySQL primary key
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Next time, use a single "alter table" statement to update the primary key.
alter table xx dro...
How to tell if JRE or JDK is installed
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answered Apr 24 '14 at 11:31
Maciej CyganMaciej Cygan
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