gnuplot documentation

84 gnuplot 4.3 70 SET-SHOW
68 Reset
The reset command causes all graph-related options that can be set with the set command to take on
their default values. This command is useful, e.g., to restore the default graph settings at the end of a
command file, or to return to a defined state after lots of settings have been changed within a command
file. Please refer to the set command to see the default values that the various options take.
The values of set term, set output, set loadpath, and set fontpath are not altered by the reset
command.
reset errors clears only the error state variables GPVAL ERRNO and GPVAL ERRMSG.
69 Save
The save command saves user-defined functions, variables, the set term status, all set options, or all
of these, plus the last plot (splot) command to the specified file.
Syntax:
save
{} ’’
where is functions, variables, terminal or set. If no option is used, gnuplot saves functions,
variables, set options and the last plot (splot) command.
saved files are written in text format and may be read by the load command. For save with the
set option or without any option, the terminal choice and the output filename are written out as a
comment, to get an output file that works in other installations of gnuplot, without changes and without
risk of unwillingly overwriting files.
save terminal will write out just the terminal status, without the comment marker in front of it. This
is mainly useful for switching the terminal setting for a short while, and getting back to the previously
set terminal, afterwards, by loading the saved terminal status. Note that for a single gnuplot session
you may rather use the other method of saving and restoring current terminal by the commands set
term push and set term pop, see set term (p. 135).
The filename must be enclosed in quotes.
The special filename "-" may be used to save commands to standard output. On systems which support
a popen function (Unix), the output of save can be piped through an external program by starting the
file name with a ’|’. This provides a consistent interface to gnuplot’s internal settings to programs
which communicate with gnuplot through a pipe. Please see help for batch/interactive (p. 22) for
more details.
Examples:
save ’work.gnu’
save functions ’func.dat’
save var ’var.dat’
save set ’options.dat’
save term ’myterm.gnu’
save ’-’
save ’|grep title >t.gp’
70 Set-show
The set command can be used to set lots of options. No screen is drawn, however, until a plot, splot,
or replot command is given.
The show command shows their settings; show all shows all the settings.
Options changed using set can be returned to the default state by giving the corresponding unset
command. See also the reset (p. 84) command, which returns all settable parameters to default values.