Re: plot to file from executable script -problem refined

[Pierre-Andre Cornillon]

If you use eval it could be ok :
eval(['gset output',filename,';'])


On Wed, 30 Jan 2002, Pieter Thysebaert wrote:

>
> On Monday 28 January 2002 16:56, Pieter Thysebaert wrote:
> > Hi,
> >
> > I've created an executable octave script to control my calculations;
> >
> > what's happening is this:
> >
> > hold on;
> >
> > for k=min:max
> >     <calculate data(k)>
> >     <create title(k)>
> >      plot data(k) t title(k)
> > endfor
> >
> > (this draws in an x11 window as it's calculations proceed)
> >
> > Now, I've appended these lines to the code (that's: after the for-loop)
> >
> > gset terminal postscript eps enhanced color
> > gset output "output.eps"
> > replot
> >
> > However, this seems to spit out the postscript code to stdout (and I wanted
> > it in "output.eps") (and simply running "./scriptfile > output.eps" gathers
> > ALL output (not just the graph) in the file)
> >
> > Why is that, and how do I get  the output where I want i.e. why doesn't
> > replot do what I was thinking it would do when in non-interactive mode ?
>
> Well, I've been able to narrow the problem:
>
> I did not add gset output "output.eps" as a command, but rather
>
> filename="output.eps";
> gset output filename
>
> I figured that this would make filename a string-variable and the gset output
> would work (doing similar things with a variable title, and then doing a
> gplot data t title does work)
>
> However, gnuplot seems to choke on it:
> It says "filename expected", so I suppose octave is passing the variable name
> rather than the contents of it (=the filename).
>
> Can I plot to a file if its name is to be determined at run-time ?
>
> Pieter
>
>
>
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