On Mar 9, 2012, at 1:05 PM, Jonathan Slavin wrote:
> Hi all,
>
> I'm plotting a set of subplots (2 x 3) and I'd like to label the x
> and y
> axes with one title each (i.e. spanning the axes) since the units
> of all
> the x axes and y axes are the same. I know that I can use fig.text to
> do it, though that would require some fiddling on my part to get the
> placement right. Is there an easier way?
>
> Jon
Hi Jon,
The way I do this is to create a "master" axis that overlaps the
others with dimensions equal to the outer border of all the other
axes. Then I just use this axis for the labels:
masterAxis.set_xlabel("ick")
masterAxis.set_ylabel("blech")
You also have to turn off ticks and tick labels for this axis:
masterAxis.xaxis.set_major_formatter(mpl.ticker.NullFormatter())
masterAxis.yaxis.set_major_formatter(mpl.ticker.NullFormatter())
Since it doesn't know about tick labels, it may not position the axis
labels far enough away from the axis line, so you can adjust the
spacing:
masterAxis.xaxis.labelpad += 6
masterAxis.yaxis.labelpad += 4
It's still a little fiddly, but less fiddly than using fig.text. I
bet this could be significantly improved, e.g. with Axes_Grid, but I
don't know how to do that.
Cheers,
Jeff
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