Re: Lining up the axes of multiplots/subplots

[Ron Crummett]

How about

axis([xmin xmax ymin ymax])

on each subplot?  Just call it after each subplot.  You can use this to 
align both x- and y-axes as you want.  As far as plotting both plots in 
one window with one x-axis and different y-axes, Matlab has a plotyy 
command to do this.  To my knowledge Octave does not yet have this but I 
am in the process of putting something similar together.

-Ron

Joseph Wakeling wrote:
> Hello,
>
> I'm hoping someone can give me some advice on multiplot(), subplot() and
> related commands.  I've played around with them a bit but not had
> success in achieving what I want.
>
> Here's the aim: two plots, one above the other, sharing the same X
> scale.  The X axes must line up together.
>
> I want to plot several data sets in the first plot, and some different
> ones in the second.
>
> Now, I can do ...
>
> #first
> subplot(2,1,1)
> plot(x1,y1)
> hold on
> plot(x2,y2)
> #etc
> hold off
>
> #then
> subplot(2,1,2)
> plot(a1,b1)
> hold on
> plot(a2,b2)
> #etc
> hold off
>
> ... to get the plots one above the other, but this doesn't do anything
> to align the axes.  What commands do I have to use to achieve this?
>
> Two related issues would be (a) the same, but side-by-side and sharing
> the same Y scale, and (b) overplotted graphs, where e.g. the X scale is
> the same but there are two different Y scales on the left and right Y axes.
>
> Can anyone advise?
>
> Many thanks,
>
>     -- Joe
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