Groups > comp.graphics.apps.gnuplot > #3519

variable in plot command and key

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From	Jörg Buchholz <bookwood4new@freenet.de>
Newsgroups	comp.graphics.apps.gnuplot
Subject	variable in plot command and key
Date	Mon, 9 Jan 2017 17:50:51 +0100
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Hello,

how can I use a string variable as "plot data" and in the key, with a
underline in the variable and the default key entry?

example:

the plot data are in the file "test_test.dat". If I use the plot command

plot 'test_test.dat' u 1:2

gnuplot gives a correct plot with the key entry "'test_test.dat' u 1:2"
to me, it is the default key entry.


Now I want to have the name of the file as a variable, for example "data"

data = 'test_test.dat'
plot data u 1:2

The plot is correct but the key entry is "data u 1:2" instead
"'test_test.dat' u 1:2".


Next thing I have tried is:

data = 'test_test.dat'
plot data u 1:2 t data

The plot is correct but in the key there is a problem with the "_" and
the "u 1:2" is missing.


Is there a way to use a variable as data file name and have the default
key entry?

Jörg

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variable in plot command and key Jörg Buchholz <bookwood4new@freenet.de> - 2017-01-09 17:50 +0100
  Re: variable in plot command and key Karl Ratzsch <mail.kfr@gmx.net> - 2017-01-09 23:50 +0100
    Re: variable in plot command and key Ethan A Merritt <EAMerritt@gmail.com> - 2017-01-09 21:59 -0800
      Re: variable in plot command and key Jörg Buchholz <bookwood4new@freenet.de> - 2017-01-10 08:17 +0100
        Re: variable in plot command and key Ethan A Merritt <EAMerritt@gmail.com> - 2017-01-10 08:54 -0800
          Re: variable in plot command and key Jörg Buchholz <bookwood4new@freenet.de> - 2017-01-11 08:22 +0100

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