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From: "thibault.langlois" <thibault.langlois@gmail.com>
Newsgroups: comp.graphics.apps.gnuplot
Subject: =?windows-1252?Q?how_do_i_set_a_key_=28legend=29_when_using_=93plot_with_?= =?windows-1252?Q?labels=94?=
Date: Tue, 22 May 2012 07:41:55 -0700 (PDT)
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Xref: csiph.com comp.graphics.apps.gnuplot:1134

When I use "plot with labels" with various groups of points everything is ok, labels appear in different colors.

However I could not find a way to set the key (legend) properly I would like to have a sample of the text color used for each group of points. All a get is the title associated to each group.

set term x11 
set key outside 
set grid 
set xlabel "#occurences"
set ylabel "F-score"
set title "Experiment"
plot "-" lw 1 with labels font "\"Helvetica\"" tc lt 1 title "foo" , "-" lw 1 with labels font "\"Helvetica\"" tc lt 2 title "bar"  
96.0 0.24390244 11
5547.0 0.7443704 24
3974.0 0.83244646 114
241.0 0.16025642 174
6220.0 0.7571273 188
7810.0 0.8637012 206
e

98.0 0.0 4
96.0 0.11320755 11
5547.0 0.75145125 24
3974.0 0.8333118 114
6220.0 0.7646692 188
7810.0 0.87222874 206
e

I would like the word "foo" to appear in red and the word "bar" in green.