[pstricks] listplot

[Poul Riis]

With listplot I can easily make several kinds of plots of points from a
data file (x1,y1),(x2,y2),(x3,y3),....
However, I would like to plot
(x1,0),(x1,y1),(x2,y1),(x2,0),(x2,y2),(x3,y2),....
How can I do that?

In more general, how can I store the points from the data file in an array
so that I can later refer to the (postscript) coordinates of point nr. i?


Poul Riis

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