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[Tutorial - Unix]
[Tutorial - PC]
Gnuplot is a command-driven interactive function and data plotting program.
It is free of charge and readily available from ftp sites on the internet. For
your convenience, you may download a copy of
gnuplot for Windows here. If you wish to download versions for different
operating systems, visit http://www.gnuplot.info
which has all the versions of gnuplot you could ask for.
Gnuplot is a powerful tool used to create plots of data and functions.
Gnuplot has many settings which can be modified to fine-tune your plots. The
tutorial will not go into too much detail about every possible setting,
but will go over the procedures to create some simple plots, with some
additional "fine-tuning" included.
Commands for Gnuplot can be typed in at its prompt, or specified within a
command file which you can specify as gnuplot's argument(s). We will focus
on typing commands at the prompt.
Before plotting your
data files or functions, you must pick the output format. Gnuplot has a wide
variety of terminal and output file types. For our purposes, we wish to
be able to display our plots to the screen (terminal type "windows"), and
also to save our plots as images (".gif" files), so we can incorporate our plots
into reports created on word processors (such as Microsoft Word), or into
HTML documents (web pages).
Gnuplot is excellent at creating two-dimensional and three-dimensional plots,
as you will see from the following tutorial on