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Is MATLAB OOP slow or am I doing something wrong?
...t; call_nops
Computer: PCWIN Release: 2009b
Calling each function/method 100000 times
nop() function: 0.02261 sec 0.23 usec per call
nop1-5() functions: 0.02182 sec 0.22 usec per call
nop() subfunction: 0.02244 sec 0.22 usec per call
@()[] anonymous f...
how do I insert a column at a specific column index in pandas?
... the beginning
df.insert(loc, column, value)
df = pd.DataFrame({'B': [1, 2, 3], 'C': [4, 5, 6]})
df
Out:
B C
0 1 4
1 2 5
2 3 6
idx = 0
new_col = [7, 8, 9] # can be a list, a Series, an array or a scalar
df.insert(loc=idx, column='A', value=new_col)
df
Out:
A B C
0 7 1 ...
Getting individual colors from a color map in matplotlib
...lib.cm.get_cmap('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 ...
How to pip install a package with min and max version range?
...
321
You can do:
$ pip install "package>=0.2,<0.3"
And pip will look for the best match, ass...
Set Colorbar Range in matplotlib
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182
Using vmin and vmax forces the range for the colors. Here's an example:
import matplotlib ...
HTML5 Canvas Resize (Downscale) Image High Quality?
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How to iterate for loop in reverse order in swift?
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Generate colors between red and green for a power meter?
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JS Client-Side Exif Orientation: Rotate and Mirror JPEG Images
... in large commercial web apps, support for EXIF orientation can be spotty 1 . The same source also provides a nice summary of the 8 different orientations a JPEG can have:
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Difference between map, applymap and apply methods in Pandas
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