Here is a quick guide to using GnuPlot to generate EPS output for
including in LaTex file. Please note that most of the commands
below only work with GnuPlot verions 3.7 and above.
See also
Setup
To plot a graph X , create two files, "plot.dat" and "plot.txt":
"data.txt"
contains the columns of values to be plotted.
"plot.txt"
contains the commands for gnuplot to plot the graph.
"plot.gif"
contains the GIF output.
To generate the graph, run "gnuplot
plot.txt".
Insert Superscript, Subscript and Greek Symbols
Insert "enhance postscript" in "plot.txt"
"set
terminal postscript eps enhance 16"
Change 16
to whatever font size desired.
Superscript and Subscript
-
To have xyz as subscript of P, use "P_{xyz}"
-
To have xyz as superscript of P, use "P^{xyz}"
-
Note the use of open and close braces to group a set of
characters
Overbar and Underbar
-
Although there isn't any postscript option to specify overbar
and underbar, a way to simulate them is to do the following:
-
To have an overbar on the letter G, use "@^{\261}G"
(short overbar) or "@^{\320}G"
(long overbar)
-
To have an underbar on the letter G, use "@_{\261}G"
(short underbar) or "@_{\320}G"
(long underbar)
Greek Symbols
-
To have the symbol α (alpha), use "{/Symbol
a}"
-
To have the symbol π (pi), use "{/Symbol
p}"
-
To have the symbol λ (lambda), use "{/Symbol
l}"
-
See the file below for a complete list of other available
symbols
This PDF
file from the installation directory list the
postscript options and different symbols available in GnuPlot
Note
that versions 3.5 or earlier do not support these postscript
options
Placing Legend/Key at a specfic coordinate
-
To move the keys to coordinate say (3,4), use "set
key 3, 4"
Change the size of the plot points
-
To change the size of the plot points to 2, use "set
pointsize 2"
Set the size of the graph
-
To change the size of the plot to 5 by 5, use "set
size 5,5"
Set xlabel/ylabel
-
To change the xlabel to "XLABEL", use "
set xlabel "XLABEL" "
-
To change the ylabel to "YLABEL", use "
set xlabel "YLABEL" "
Remove mirror tickmark
-
To remove mirror xtick marks, use "set
xtics nomirror"
-
To remove mirror ytick marks, use "set
ytics nomirror"
Set the range of X and Y axes
-
Example : "set xrange [0:50]"
-
Example : "set yrange [0:100]"
Preset Tickmark on X axis
-
To preset tickmark on x-axis, use "set
xtics (10,100,1000,10000)"
-
Note that this can be combined with the option "nomirror" too.
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