On Fri, Sep 12, 2008 at 4:31 PM, Jeff Whitaker <[EMAIL PROTECTED]> wrote:
> Jeremy Conlin wrote:
>
>> First question:
>> I know I can do pylab.loglog() to get a log-log plot. I would like to
>> create a log-linear plot. How can I do this?
>>
>
> semilogx or semilogy:
>
>
>
> semilogy <
> http://matplotlib.sourceforge.net/matplotlib.pyplot.html#-semilogy>(*args,
> **kwargs)
>
> Make a plot with log scaling on the *y* axis.
>
>>
>> Second question:
>> I would like to plot two sequences on the same figure with two different
>> y-scales, one scale shown on the left and one scale shown on the right. How
>> can I do this?
>>
>
> twiny:
>
>
> ax = twiny
> <http://matplotlib.sourceforge.net/matplotlib.axes.html#Axes-twiny>()
> create a twin of Axes
> <http://matplotlib.sourceforge.net/matplotlib.axes.html#Axes> for
> generating a plot with a shared
> y-axis but independent x axis. The x-axis of self will have
> ticks on bottom and the returned axes will have ticks on the
> top
>
> -Jeff
>
>>
Thanks for that information, that is what I needed. But now I come up with
a separate problem. I have the following in my code:
pylab.plot(n, S, 'b.', label='x')
pylab.legend()
ax2 = pylab.twinx()
pylab.plot(n, mean, 'r',label="mean")
ax2.yaxis.tick_right()
pylab.legend()
Both plots are shown with the appropriate axes, but only the second plot is
listed in the legend. If I only have the first, then only the first plot
will be listed. Please help.
Jeremy
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