Re: [Matplotlib-users] color kwarg of hist

[Eric F. <ef...@ha...>]

John Didion wrote:
> The documentation for hist says that the color kwarg can take a sequence
> of rgba tuples. However, anytime I pass a sequence I get:

That is an error in the docstring; it can take only a single color, 
which will be applied to both the edge and the fill.

Eric

> 
> 
> Traceback (most recent call last):
>  File "./chromoplot.py", line 283, in <module>
>    main()     File "./chromoplot.py", line 280, in main
>    plot(data_file, figure_file, options)
>  File "./chromoplot.py", line 225, in plot
>    c.plot(figure_file)
>  File "./chromoplot.py", line 220, in plot
>    fig.savefig(figure_file)
>  File "/Library/Python/2.6/site-packages/matplotlib/figure.py", line
> 1032, in savefig
>    self.canvas.print_figure(*args, **kwargs)
>  File "/Library/Python/2.6/site-packages/matplotlib/backend_bases.py",
> line 1476, in print_figure
>    **kwargs)
>  File
> "/Library/Python/2.6/site-packages/matplotlib/backends/backend_agg.py",
> line 358, in print_png
>    FigureCanvasAgg.draw(self)
>  File
> "/Library/Python/2.6/site-packages/matplotlib/backends/backend_agg.py",
> line 314, in draw
>    self.figure.draw(self.renderer)
>  File "/Library/Python/2.6/site-packages/matplotlib/artist.py", line 46,
> in draw_wrapper
>    draw(artist, renderer, *kl)
>  File "/Library/Python/2.6/site-packages/matplotlib/figure.py", line
> 773, in draw
>    for a in self.axes: a.draw(renderer)
>  File "/Library/Python/2.6/site-packages/matplotlib/artist.py", line 46,
> in draw_wrapper
>    draw(artist, renderer, *kl)
>  File "/Library/Python/2.6/site-packages/matplotlib/axes.py", line 1735,
> in draw
>    a.draw(renderer)
>  File "/Library/Python/2.6/site-packages/matplotlib/artist.py", line 46,
> in draw_wrapper
>    draw(artist, renderer, *kl)
>  File "/Library/Python/2.6/site-packages/matplotlib/patches.py", line
> 298, in draw
>    gc.set_foreground(self._edgecolor)
>  File "/Library/Python/2.6/site-packages/matplotlib/backend_bases.py",
> line 628, in set_foreground
>    self._rgb = colors.colorConverter.to_rgba(fg)
>  File "/Library/Python/2.6/site-packages/matplotlib/colors.py", line
> 353, in to_rgba
>    raise ValueError('to_rgba: Invalid rgba arg "%s"\n%s' % (str(arg), exc))
> ValueError: to_rgba: Invalid rgba arg "((1, 0, 0, 1), (0, 1, 0, 1))"
> need more than 2 values to unpack 
> 
> 
> ------------------------------------------------------------------------------
> Download Intel&#174; Parallel Studio Eval
> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users