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Labels
The labels style is available only if gnuplot is built with configuration
option -enable-datastrings. For a 2-D plot with labels you must specify
3 input data columns; the text string found in the third column is printed at
the X and Y coordinates generated by the first two column specifiers. The
font, color, rotation angle and other properties of the printed text may be
specified as additional command options (see set label (p. )). The example below
will generate a 2-D plot with text labels taken from column 4 of the input
file (tc lt 2 is shorthand for textcolor linetype 2, which is green).
plot 'datafile' using 1:(0.5 * $2):4 with labels font "arial,11" tc lt 2
The labels style can also be used in 3-D plots. In this case four input
column specifiers are required, corresponding to X Y Z and text.
splot 'datafile' using 1:2:3:4 with labels
See also datastrings (p. ), set style data (p. ).
Ethan Merritt
2007-03-03