use plotutils to generate line and scatter plots in idraw format PostScript
plotutils is put out by the GNU
project, available through
http://www.gnu.org/software/plotutils/plotutils.html.
local-copy
"graph -T ps
" can be used to generate output in
idraw-compatible postcript, which can be imported into any ivtools
drawing editor, via the import dialog
box or use of the "telcat
" mode on comterp.
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