[Gnuplot-info] Using splot

[<she...@be...>]

Hello Gnuplot List

I have a simple gnuplot script for plotting a 3d surface of data read from
a file (named percent_diff.dat) that looks like this:

set ticslevel 0.0
unset hidden3d
set xlabel "x"
set ylabel "y"
set mouse
set nokey
set size ratio 1
set autoscale
set palette gray

splot 'percent_diff.dat' matrix with lines


How can I plot the surface but not connect the surface lines when the
value in the file is of some chosen value? Incidentally when the value in
the file is a NAN then gnuplot automatically does what I want. But I would
not want to rely on abusing this feature to get the plots I want.

Thank you!