Hi Jeff,
you can do something like the following and specify the color for each bar by
providing a list of colors for the keyword argument 'color'.
import numpy as np
import matplotlib.pyplot as plt
# generate some data
left = np.arange(6)
height = np.random.uniform(size=6)
# plot 3 blue and 3 red bars:
plt.bar(left, height, color=['blue']*3+ ['red']*3)
plt.show()
You second way could be provided by the color list
['red', '0.5']*3 = ['red', '0.5', 'red', '0.5', 'red', '0.5']
Kind regards,
Matthias
On Saturday 23 January 2010 16:36:36 Jeff Layton wrote:
> Good morning,
>
> I hate to ask such a newbie question but I am a newb with matplotlib :)
>
> I want to create a bar chart with, for example, 6 "bars". I want the first
> 3 bars to be one color and the second 3 bars to be another color. I'm
> not entirely sure how to do this - any suggestions?
>
> Alternatively, I would like to create 6 bars where every other bar is
> a different color. For example, gray, red, gray, red, gray, red. Any
> suggestions on this?
>
> TIA!
>
> Jeff
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