gnuplot splot colors based on a fourth column of the data file

Question

I have a data file with 4-column data, the first three columns specify a point (x,y,z) and the fourth is either a 1, 2, or 3 - I want the point to be colored based on the value of the fourth column (i.e., if it's a 2, color the point red, if 3, green, if 1, blue)

Discrete color part: http://stackoverflow.com/questions/8717805/how-to-make-points-one-color-when-a-third-column-equals-zero-and-another-color — Ciro Santilli OurBigBook.com, Oct 09 '15 at 13:42

score 5 · Accepted Answer · answered Jul 24 '12 at 01:35

5

set style line 1 lc rgb "red"
set style line 2 lc rgb "blue"
set style line 3 lc rgb "green"
splot 'datafile' u 1:2:3:4 lc variable

answered Jul 24 '12 at 01:35

mgilson

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gnuplot splot colors based on a fourth column of the data file

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