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GNUPLOT(1)                           General Commands Manual                           GNUPLOT(1)

NAME
       gnuplot - an interactive plotting program

SYNOPSIS
       gnuplot [X11 options] [options] [file ...]

DESCRIPTION
       Gnuplot is a command-driven interactive plotting program.

       If  file  names are given on the command line, gnuplot loads and executes each file in the
       order specified, and exits after the last file is processed.  If no files are given,  gnu-
       plot prompts for interactive commands.

       Here are some of its features:

       Plots any number of functions, built up of C operators, C math library functions, and some
       things C doesn't have like **, sgn(), etc.

       User-defined constants and functions.

       All computations performed in the complex domain.  Just the real part is  plotted  by  de-
       fault, but functions like imag() and abs() and arg() are available to override this.

       Many presentation styles for plotting user data from files, including surface-fitting, er-
       ror bars, boxplots, histograms, heat maps, and simple manipulation of image  data.   There
       is an on-line demo collection at
       http://gnuplot.info/demo

       Nonlinear least-squares fitting.

       2D and 3D plots with mouse-controlled zooming, rotation, and hypertext.

       Shell escapes and command line substitution.

       Load and save capability.

       Support for a huge variety of output devices and file formats.

OPTIONS
       -p, --persist lets plot windows survive after main gnuplot program exits.

       -c  scriptname ARG1 ARG2 ..., load script using gnuplot's "call" mechanism and pass it the
       remainder of the command line as arguments

       -d, --default settings.  Do not read from gnuplotrc or ~/.gnuplot on entry.

       -e "command list" executes the requested commands before loading the next input file.

       -s, --slow wait for slow font initialization rather than continuing with an error.

       -h, --help print summary of usage

       -V show current version

X11 OPTIONS
       For terminal type x11, gnuplot accepts the standard X Toolkit options and  resources  such
       as  geometry,  font, and background. See the X(1) man page for a description of common op-
       tions.  For additional X options specific to gnuplot, type help x11 on the gnuplot command
       line. These options have no effect on other terminal types.

ENVIRONMENT
       A  number of shell environment variables are understood by gnuplot.  None of these are re-
       quired.

       GNUTERM
              The name of the terminal type to be used by default.  This can be overridden by the
              gnuplotrc  or .gnuplot start-up files and, of course, by later explicit "set termi-
              nal" commands.

       GNUHELP
              The pathname of the HELP file (gnuplot.gih).

       HOME   The name of a directory to search for a .gnuplot file.

       PAGER  An output filter for help messages.

       SHELL  The program used for the "shell" command.

       FIT_SCRIPT
              Specifies a gnuplot command to be executed when a fit  is  interrupted---see  "help
              fit".

       FIT_LOG
              The name of the logfile maintained by fit.

       GNUPLOT_LIB
              Additional  search directories for data and command files. The variable may contain
              a single directory name, or a list of directories separated by ':'. The contents of
              GNUPLOT_LIB  are appended to the "loadpath" variable, but not saved with the "save"
              and "save set" commands.

       GDFONTPATH
              Several gnuplot terminal drivers access TrueType fonts via the  gd  library.   This
              variable gives the font search path for these drivers.

       GNUPLOT_DEFAULT_GDFONT
              The default font for the terminal drivers that access TrueType fonts via the gd li-
              brary.

       GNUPLOT_FONTPATH
              The font search path used by the postscript terminal. The format is the same as for
              GNUPLOT_LIB.  The contents of GNUPLOT_FONTPATH are appended to the "fontpath" vari-
              able, but not saved with the "save" and "save set" commands.

       GNUPLOT_PS_DIR
              Used by the postscript driver to locate external prologue files. Depending  on  the
              build  process,  gnuplot  contains either a builtin copy of those files or simply a
              default hardcoded path. Use this variable to test the postscript terminal with cus-
              tom prologue files. See "help postscript prologue".

FILES
       gnuplotrc
              When  gnuplot  is  run,  it first looks for a system-wide initialization file named
              gnuplotrc.  The standard location of this file expected by the program is  reported
              by the "show loadpath" command.

       .gnuplot
              After loading the system-wide initialization file, if any, Gnuplot looks for a pri-
              vate initialization file in the HOME directory.  It may contain any  legal  gnuplot
              commands, but typically they are limited to setting the preferred terminal and line
              types and defining frequently-used functions or variables.

       fit.log
              The default name of the logfile output by the "fit" command.

AUTHORS
       Original authors: Thomas Williams and Colin Kelley.  Starting with  gnuplot  version  3.8,
       the  project  source  is cooperatively maintained on SourceForge by a large number of con-
       tributors.

BUGS
       Please report bugs using the project bug tracker on SourceForge.

SEE ALSO
       See the printed manual or the on-line help for details on specific commands.  Project  web
       site at http://gnuplot.info

4th Berkeley Distribution                  15 March 2019                               GNUPLOT(1)

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