[LON-CAPA-users] variable number of curves in a gnuplot problem

[Guy Albertelli II]

Hi Hon-Kie,

> I am trying to creating a gnuplot problem that may have, say 5-8 curves or 
> points. I haven't been able to figure out how to do this since under 
> gnuplot tag, I have to specify the
> 
> <curve name="" linestyle="lines" pointtype="0" color="x003399">
>      <data>@X</data> <data>@Y</data>
> </curve>
> 
> for each curve beforehand. How do I write it so the number of curves are 
> not set but determined by a random assignment.

Something like this should work:

<script type="loncapa/perl">
  $curves=&random_curve_set();
  $gnuplot=&xmlparse('<gnuplot ....>'.$curves.'</gnuplot>';
</script>
<display>$gnuplot</display>

-- 
guy@albertelli.com  LON-CAPA Developer  0-7-4-9-