[Gnuplot-info] Problem getting xrange-values from a file

[logNa <en...@gm...>]

Hello,

im really new to Gnuplot, so my problem is probabely easy to solve. I did
alot of searches in Google, found this forum, searched here...no solution
for me yet.

My problem is:

I got a data file which looks like this:
blib 4 73
ble 52 2
blu 6 236
bla 63 236
bla2 2 63

3 "fields" per line (seperating them with ";" doesnt work in my old gnuplot
version..at least it doesnt know the set datafile separator command...so I
use spaces).

what I want is:
first field is the xrange, which should be shown below the x-axis
second and third fields are the y coords for two curves

plot 'file.dat' using 2 t 'curve 1', \
plot 'file.dat' using 3 t 'curve 2'

works to print the curves, but how do I get gnuplot to read the xrange from
my file?

Also, lets assume the data file is quite large with lets say 1000 lines, 
is there a way to print the graph to a file which is automatically scaled in
a way, that every x-value is shown?


Thank you in advance

Fred

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