`(require 'eps-graph)`

This is a graphing package creating encapsulated-PostScript files. Its motivations and design choice are described in http://people.csail.mit.edu/jaffer/Docupage/grapheps

A dataset to be plotted is taken from a 2-dimensional array. Corresponding coordinates are in rows. Coordinates from any pair of columns can be plotted.

— Function: **create-postscript-graph**` filename.eps size elt1 ...`

filename.epsshould be a string naming an output file to be created.sizeshould be an exact integer, a list of two exact integers, or #f.elt1, ... are values returned by graphing primitives described here.

`create-postscript-graph`

creates an Encapsulated-PostScript file namedfilename.epscontaining graphs as directed by theelt1, ... arguments.The size of the graph is determined by the

sizeargument. If a list of two integers, they specify the width and height. If one integer, then that integer is the width and the height is 3/4 of the width. If #f, the graph will be 800 by 600.

These graphing procedures should be called as arguments to
`create-postscript-graph`

. The order of these arguments is
significant; PostScript graphics state is affected serially from the
first `elt` argument to the last.