On Thu, Jul 29, 2010 at 10:07 AM, Matthias Michler
<matthiasmich...@gmx.net>wrote:
> On Thursday July 29 2010 12:05:24 Bala subramanian wrote:
> > Friends,
> > I wrote a small script to plot a data and its pdf in single figure but as
> > two subplots.
> >
> > 1) However i want to share xaxis of ax2 (subplot 122) with the y axis of
> > ax1 (subplot 121). What function should i use do that. I tried sharex and
> > sharey but i am not gettting what i want.
> >
> > 2) Is there any possiblity to one of the subplot for instance i want to
> > rotate ax2 by 90.
> >
> > #!/usr/bin/env python
> > import matplotlib.pyplot as plt
> > import numpy as np
> > import matplotlib.mlab as mlb
> > data1=np.loadtxt('test.rms',usecols=(1,))
> > fig=plt.figure()
> > ax1=fig.add_subplot(121)
> > ax2=fig.add_subplot(122)
> > ax1.plot(data1)
> > mu,sigma=np.mean(data1),np.std(data1)
> > n, bins, patches = ax2.hist(data1, bins=25, normed=1, facecolor='green',
> > alpha=0.75,visible=False)
> > y = mlb.normpdf( bins, mu, sigma)
> > l = ax2.plot(bins,y,'-',linewidth=1.2)
> > plt.show()
>
> Hi Bala,
>
> I attached a small stand-alone example, which illustrates two ways of
> showing
> data and its pdf sharing one axis. Maybe this can serve as a starting point
> for you to solve the problem or you can describe in more detail what is
> missing.
>
> Kind regards,
> Matthias
>
>
Actually, I think Bala is asking for something different, and I while I
think matplotlib is *capable* of doing it, I am not aware of any easy-to-use
function to do it. Currently, you can share a pair of x axes, or a pair of
y axes. This is fairly straight-forward because the axes object returned
from a .add_subplot() command contains both axis objects, and you can easily
pass in another axes object to the sharex or sharey keyword arguments.
Those sharex and sharey arguments assume that you mean to pair-up the x axis
of the two axes objects, or the y axis of the two axes objects. However,
what we want here is the ability to have the x axis in one axes object to be
paired with the y axis of another axes object. This is a completely
different, but valid, use-case and would be a useful feature to make
available (or at least, better documented).
Ben Root
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