[Gnuplot-info] keys of stacked histograms

[Daniel G. <li...@da...>]

Hello,

the documentation for the new features is not that clear, or I did not understand it..so please give me a hint.

My Datafile format looks like this:
BHR 0 14 21.5385 19 113 0
BHR 1 14 21.5385 27 318 39
BHR 20 10 15.3846 24 190 211
BHR 50 12 18.4615 19 103 101
BHR 70 4 6.15385 4 30 23
BHR 90 1 1.53846 1 11 10
BHR 100 10 15.3846 10 17 17

my plot is:
plot  "file1" using 3 "BHR %lf %lf %lf %lf %lf", \
      "file 2" using 3 "BHR %lf %lf %lf %lf %lf"

The third column are percentages, they sum up to 100. As keys for the different colors I want the first column. Labeling the x-Axis is no problem (took it from the examples), but how can I specifi the first column as key description?

Thanks for answering,
Daniel.