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How does this CSS produce a circle?
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373
How does a border of 180 pixels with height/width-> 0px become a circle with a radius of...
Java switch statement: Constant expression required, but it IS constant
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13 Answers
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Cancellation token in Task constructor: why?
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Eliahu Aaron
3,15122 gold badges2020 silver badges3232 bronze badges
answered Sep 14 '10 at 21:38
Max GalkinMax Ga...
Separate REST JSON API server and client? [closed]
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136
At Boundless, we've gone deep with option #2 and rolled it out to thousands of students. Our se...
Getting individual colors from a color map in matplotlib
...ap('Spectral')
rgba = cmap(0.5)
print(rgba) # (0.99807766255210428, 0.99923106502084169, 0.74602077638401709, 1.0)
For values outside of the range [0.0, 1.0] it will return the under and over colour (respectively). This, by default, is the minimum and maximum colour within the range (so 0.0 and 1...
What's the difference between Jetty and Netty?
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3 Answers
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numpy: most efficient frequency counts for unique values in an array
...ncount(x)
ii = np.nonzero(y)[0]
And then:
zip(ii,y[ii])
# [(1, 5), (2, 3), (5, 1), (25, 1)]
or:
np.vstack((ii,y[ii])).T
# array([[ 1, 5],
[ 2, 3],
[ 5, 1],
[25, 1]])
or however you want to combine the counts and the unique values.
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Find index of last occurrence of a substring in a string
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Use .rfind():
>>> s = 'hello'
>>> s.rfind('l')
3
Also don't use str as variable name or you'll shadow the built-in str().
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