Hi,
I am trying to improve my code where I cannot find out why matplotlib-1.1.0
does not
support colors specified as RG tuples. Here is an example.
import numpy as np
import matplotlib.pyplot as plt
_nums = [160.0, 160.0, 160.0, 95.0, 160.0, 160.0]
_colors = [(0.5019607843137255, 0.0, 0.5019607843137255), (0.5019607843137255,
0.0, 0.5019607843137255), (0.5019607843137255, 0.0, 0.5019607843137255),
(0.5019607843137255, 0.0, 0.5019607843137255), (0.5019607843137255, 0.0,
0.5019607843137255), (0.5019607843137255, 0.0, 0.5019607843137255)]
_legends = ['foo', 'foo', 'foo', 'blah', 'foo', 'foo']
plt.hist(_nums, histtype='bar', align='mid', color=_colors, log=False,
label=_legends)
plt.show()
The above code gives me:
File "/usr/lib64/python2.7/site-packages/matplotlib/pyplot.py", line 2332, in
hist
ret = ax.hist(x, bins, range, normed, weights, cumulative, bottom,
histtype, align, orientation, rwidth, log, color, label, **kwargs)
File "/usr/lib64/python2.7/site-packages/matplotlib/axes.py", line 7598, in
hist
raise ValueError("color kwarg must have one color per dataset")
ValueError: color kwarg must have one color per dataset
Mainly, I am suggesting the error message to be improved and to write out how
many
items were in data, color and legend iterables passed to the function. That
would help
in some cases albeit not with this example. That needs some other fix. ;)
I would like that one can also pass in a list of HTML-like colors, e.g.
'F0F8FF' or 0xF0F8FF
would be valid.
Thanks for your comments,
Martin
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