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How to create a density plot in matplotlib?
...s np
from scipy.stats import gaussian_kde
data = [1.5]*7 + [2.5]*2 + [3.5]*8 + [4.5]*3 + [5.5]*1 + [6.5]*8
density = gaussian_kde(data)
xs = np.linspace(0,8,200)
density.covariance_factor = lambda : .25
density._compute_covariance()
plt.plot(xs,density(xs))
plt.show()
I get
which is pretty clos...
Structure padding and packing
... - unaligned memory access is slower on architectures that allow it (like x86 and amd64), and is explicitly prohibited on strict alignment architectures like SPARC.
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Extracting the last n characters from a string in R
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I'm not aware of anything in base R, but it's straight-forward to make a function to do this us...
What is `mt=8` in iTunes links for the App Store?
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How do I calculate the date six months from the current date using the datetime Python module?
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1086
I found this solution to be good. (This uses the python-dateutil extension)
from datetime imp...
How do I read / convert an InputStream into a String in Java?
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2581
A nice way to do this is using Apache commons IOUtils to copy the InputStream into a StringWrit...
Find the index of a dict within a list, by matching the dict's value
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answered Dec 8 '10 at 20:03
toklandtokland
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UnicodeDecodeError: 'ascii' codec can't decode byte 0xef in position 1
I'm having a few issues trying to encode a string to UTF-8. I've tried numerous things, including using string.encode('utf-8') and unicode(string) , but I get the error:
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JS Client-Side Exif Orientation: Rotate and Mirror JPEG Images
...on can be spotty 1 . The same source also provides a nice summary of the 8 different orientations a JPEG can have:
12 A...
Reshaping data.frame from wide to long format
...33
Jaap
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answered Feb 2 '10 at 16:07
AnikoAniko
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