Re: [Matplotlib-users] Plotting with more than two y-axes (with twinx?)

[Joe K. <jof...@gm...>]

Hi Daniel,

For what it's worth, the code runs perfectly for me as-is on matplotlib
1.3.1 with python 2.7 on linux.

However, based on your description, I'd guess that the second call to
`twinx` is returning the same axes object.

What happens when you do:

print id(axes[1]), id(axes[2])

Are the id numbers the same or different?

If they're the same, there may have been a regression/change that causes
`twinx` to return the same object instead of creating a new axes.

Cheers!
-Joe



On Wed, Nov 27, 2013 at 5:08 PM, dodermat <dan...@gm...> wrote:

> Dear all
>
> What I want to accomplish was produced two years ago in  a stackoverflow
> snippet by Joe Kington
> <
> http://stackoverflow.com/questions/7733693/matplotlib-overlay-plots-with-different-scales
> >
> , and shown in the first figure below. However, when I use his snippet in
> matplotlib 1.3.x, I get an output where the third axis replaces the second
> axis, and the blue dots are accordingly distributed in only the lower half
> of the plot (see second figure below). I considered downdating to an older
> version of matplotlib, but then I came across  a remark in the matplotlib
> FAQ <http://matplotlib.org/faq/howto_faq.html#multiple-y-axis-scales>  .
> According to this remark, such a feature for twinx is on the wish list and
> thus not very likely to be available in an older version.
>
> Can someone please explain the Kington magic to me?
>
>
> <http://matplotlib.1069221.n5.nabble.com/file/n42556/ksRXk.png>
> <http://matplotlib.1069221.n5.nabble.com/file/n42556/figure_1.png>
>
>
>
> --
> View this message in context:
> http://matplotlib.1069221.n5.nabble.com/Plotting-with-more-than-two-y-axes-with-twinx-tp42556.html
> Sent from the matplotlib - users mailing list archive at Nabble.com.
>
>
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