phpman > man > gnuplot-qt(1)

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 or‐
       der specified, and exits after the last file is processed.  If no files  are  given,  gnuplot
       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  default,
       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, error
       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 re‐‐
       mainder 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 options.
       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 terminal"
              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 GNU‐
              PLOT_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 vari‐
              able 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" variable,
              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  de‐
              fault  hardcoded  path.  Use this variable to test the postscript terminal with custom
              prologue files. See "help postscript prologue".

FILES
       gnuplotrc
              When gnuplot is run, it first looks for a system-wide initialization file  named  gnu‐
              plotrc.  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 private
              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 contributors.

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)