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Getting individual colors from a color map in matplotlib
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You can do this with the code below, and the code in your question was actually very close to what you needed, all you have to do is call the cmap object you have.
import matplotlib
cmap = matplotlib.cm.get_cmap('Spectral')
rgba = cmap(0.5)
print(rgba) # (0.9...
what does -webkit-transform: translate3d(0,0,0); exactly do? Apply to body?
...rocessing unit
(GPU) to make pixels fly. Web applications, on the other hand, run in
the context of the browser, which lets the software do most (if not
all) of the rendering, resulting in less horsepower for transitions.
But the Web has been catching up, and most browser vendors now provide...
Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)
I was going through the exercises in Ruby Koans and I was struck by the following Ruby quirk that I found really unexplainable:
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How do I replace NA values with zeros in an R dataframe?
I have a data frame and some columns have NA values.
21 Answers
21
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Why are elementwise additions much faster in separate loops than in a combined loop?
Suppose a1 , b1 , c1 , and d1 point to heap memory and my numerical code has the following core loop.
10 Answers
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Looping in a spiral
...algorithm that would let him loop through the elements of an NxM matrix (N and M are odd). I came up with a solution, but I wanted to see if my fellow SO'ers could come up with a better solution.
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Fastest way to check if a string matches a regexp in ruby?
... avoids object allocations performed by other methods such as Regexp#match and =~:
Regexp#match?
Added Regexp#match?, which executes a regexp match without creating a back reference object and changing $~ to reduce object allocation.
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Python and pip, list all versions of a package that's available?
...l the possible versions of it that pip could install? Right now it's trial and error.
16 Answers
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CSS Input with width: 100% goes outside parent's bound
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According to the CSS basic box model, an element's width and height are applied to its content box. Padding falls outside of that content box and increases the element's overall size.
As a result, if you set an element with padding to 100% width, it's padding will make it wider tha...
Simplest way to profile a PHP script
...latest release of APD is dated 2004, the extension is no longer maintained and has various compability issues (see comments).
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