Check which gnuplot version you have. The loop syntax changed between the versions and • Check which terminals you have installed. This manual was originally prepared by Dick Crawford. Here you see a slightly modified version from the one offered on the gnuplot documentation site. Gnuplot is a free, command-driven, interactive, function and data plotting program, providing a relatively . in gnuplot (v ≥ ). • Consider the . http:// – Here you can find a nice tutorial, explaining Legend, tics.

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This manual was originally prepared by Dick Crawford. Here you see a slightly modified version from the one offered on the gnuplot documentation site Version 4.

Permission to use, copy, and distribute this software and its documentation for any purpose with or without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice gnuploy this permission notice appear in supporting documentation. Permission to modify the software is granted, but not the right to distribute the complete modified source code.

Modifications are to be distributed as patches gjuplot the released version.

Permission to distribute binaries produced by compiling modified sources is granted, provided you. This software is provided ” as 4.66 ” without express or implied warranty to the extent permitted by applicable law. The source code is copyrighted but freely distributed i. It was originally created to allow scientists and students to visualize mathematical functions and data interactively, but has grown to support many non-interactive uses such as web scripting.

Official gnuplot documentation

It is also used as a plotting engine by third-party applications like Octave. Gnuplot has been supported and under active development since Gnuplot supports many types of plots in either 2D and 3D. It can draw using lines, points, boxes, contours, vector fields, surfaces, and various associated text. It also supports various specialized tutorlal types. Gnuplot supports many different types of output: Gnuplot is easily extensible to include new output modes.

Recent additions include interactive gnu;lot based on wxWidgets usable on multiple platformsand Qt. Mouseable plots embedded in web pages can be generated using the svg or HTML5 canvas terminal drivers. The hutorial language of gnuplot is case sensitive, i. All command names may be abbreviated as long as the abbreviation is not ambiguous. Any number of commands may appear on a line, separated by semicolons.

Strings tutoriaal be set off by either single or double quotes, although there are some subtle differences. The backslash must be the last character on each line. The effect is as if the backslash and newline were not there.

Demo scripts for gnuplot version

That is, no white space is implied, nor is a comment terminated. Therefore, commenting out a continued line comments out the entire command see comments p. But note that if an error occurs somewhere on a multi-line command, the parser may not be able to locate precisely where the error is and in that case will not necessarily point to the correct line. Gnuplot keywords or help topics are indicated by backquotes or boldface where available.


In many cases, a default value of the tutoral will be taken for optional arguments if the token is omitted, but these cases are not always denoted with braces around the angle brackets. For built-in help on any topic, type help followed by the name of the topic or help? The new gnuplot user should begin by reading about plotting if in an interactive session, type help plotting.

Gnuplot can be started from a command line or from an icon according to the desktop environment. Running it from command line can take the syntax. Options interpreted by gnuplot may come anywhere on the line. Files are executed in tutrial order specified, as are commands supplied by the -e option, for example. The special filename ” – ” is used to force reading from stdin.

Gnuplot exits after the last file is processed. If no load files are named, Gnuplot takes interactive input from stdin. The options specific to gnuplot can be listed by typing.

In sessions with an interactive plot window you can hit ‘h’ anywhere on the plot for help about hotkeys and mousing features. Section seeking-assistance will help you to find further information, help and FAQ. When posting a question, please include full details tutrial the gnuplot version, the terminal type, and the operating system you are using. A small script demonstrating the problem may be useful.

Gnuplot manpage « Gnuplotting

Function plots are preferable to datafile plots. This section lists major additions since version 4. For a more exhaustive list, see the NEWS file. Simple iteration is possible inside plot or set commands. General iteration spanning multiple commands is possible using a block construct as shown below.

For a related new feature, see the summation p. Here is an example using several of these new syntax features:. It is now possible to select a column of data from a data file by matching a label in the first row of the file. You can now customize properties color, linewidth, point type of the default sequence of linetypes used in plotting. See set linetype p. Most terminals now allow you to set an explicit background color for the plot.

The special linetype bgnd can be used to draw in this color. See documentation for plot styles boxplot p. Polar plot mode has been reworked to support additional plot styles. The polar axes can now be drawn and labeled independent of the x and y axes.

gnuplot 4.6

See set polar p. New smoothing algorithms have been added for both 2- and 3-dimensional plots. Several new tutoroal kernels have been added to dgrid3d for use with splot.

Gnuplot now tracks time to millisecond precision. Time formats have been modified to match this. The new built-in function time returns the current time of day according to the system clock.

The new stats command reads data from a file using the same syntax as the plot or splot commands. Rather than drawing a graph, it prints out a statistical summary of the data contained in the column[s] requested.

The resulting statistics min, max, mean, standard deviation, correlation, etc. The qt driver implements an interactive terminal on top of the Qt graphics layer. It can function either as a window in a full-featured desktop enviroment or as a full-screen application on a Qt-based embedded device. The qt terminal is new and may still have some rough edges. Two terminal types support web-based interactive display.

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The HTML5 canvas terminal was introduced in version 4. The canvas terminal driver produces javascript output that draws onto the HTML canvas element of a web page. It can produce either a complete web page containing a single plot, or a script that can be embedded as part of an externally generated HTML document that perhaps contains multiple plots. The lua terminal driver creates data intended to be further processed by a script in the lua programming language.

At this point only one such lua script, gnuplot-tikz. It produces a TeX document suitable for use with the latex TikZ package. Other lua scripts could be written to process the gnuplot output for use with other TeX packages, or with other non-TeX tools. As decribed above, it uses the generic lua terminal and an external lua script to produce a latex document.

To process its output, you additionally require the gnuplot module for ConTeXt available at.

The epscairo terminal uses the cairo and pango libraries to create encapsulated postscript eps ouput. It is an alternative to the postscript terminal driver for those who would like to have their eps files look equal to e. The cairolatex terminal uses the cairo backend of the pdfcairo or epscairo terminal to produce graphs for inclusion in LaTeX documents. It creates pdf or eps graphics but transfers texts to LaTeX in the same way as the epslatex terminal.

The windows terminal driver has been revised to suport transparency, antialiasing, buffered output, multiple graph windows and copying to clipboard and saving of graphs as emf files.

It has many new options and a revised user interface. Additionaly, the code of the text console has been largely rewritten to support rutorial of long lines. Help is now provided via HTML. This is now under the control of a configuration option, and can be enabled as follows:. Deprecated syntax items may be removed entirely in some future version of gnuplot. One major difference is the introduction of keywords to disambiguate complex commands, particularly commands containing string variables.

A notable gnupot was the use of bare numbers to specify offsets, line and point types.

Gnuplot may be executed in either batch or interactive modes, and the two may even be mixed together on many systems. Any command-line arguments are assumed to be either program options first character tutorrial – or names of files containing gnuplot commands. The option -e ” command ” may be used to force execution of a gnuplot command.

Each file or command string will be executed in the order specified. The special filename ” – ” is indicates that commands are to be read from stdin. If no load files and no command strings are specified, gnuplot accepts interactive input from stdin. Both the exit gnuplkt quit commands terminate the current command file and load the next one, until all have been processed.