Re: Multiple plots

[Søren Hauberg]

If you use 'hold' simple do something like

hold on
for i = 1:length(N)
  X = linspace(0, l, N(i))/lambda;
  Y = f(X, N(i)); % I don't know how this line looks,
                  % as it depends on how 'f' is declared.
  plot(X, Y);
endfor
hold off

I don't think you can do something like this by plotting a matrix.

Søren

P.S. A good way to figure these things out, is just to try it at the 
Octave prompt. Sure, you'll get some errors once in a while, but they 
don't hurt anybody :-)

asha g skrev:
> The x axis is x = linspace(0,l,N)
> X = x/lambda 
> So as N varies, X varies. How do you put that on one
> plot?
> Asha 
> --- Søren Hauberg <address@hidden> wrote:
>
> > I don't quite understand your problem. You can use
> > the 'hold' command to 
> > plot several plots on one figure. The code for this
> > looks something like 
> > this:
> >
> > figure
> > hold on
> > for N = 10: 10: 40
> >    plot(f(N), Y)
> > endfor
> > hold off
> >
> > or you can put all your data in a matrix and then
> > plot that matrix. This 
> > would look something like this
> >
> > N = 10: 10: 40;
> > data = zeros(length(X), length(N));
> > for i = 1:length(N)
> >    data(:, i) = f(N(i));
> > endfor
> > plot(data)
> >
> > I haven't tested any of the above code, but
> > something similar to the two 
> > examples should work for you.
> >
> > Søren
> >
> >
> > asha g skrev:
> > > Could someone tell me what the command is for
> > multiple
> > > plots. Basically I have N = 10: 10: 40 
> > >
> > > I am plotting a fn X vs Y for the various values
> > of N
> > > and  would like them to be in the same plot
> > ideally
> > > but I get an error message for that as X = f(N).
> > > So I would like to plot it in subplots.
> > >
> > > I tried mplot(X,Y) but I get an error message :
> > > 'mplot' undefined.
> > >
> > > thanks
> > > Asha 
> > >
> > >  
> > >    
> > >    
> > >    
> > >   Goals too clearly defined can become blinkers. 
> > >   Mary Catherine Bateson 
> > >
> > >
> > >
> > >        
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