General Information about Gnuplot

• current version of gnuplot
• Gnuplot FAQ
• Mstakes in this document
• Archive of this site
• Related Topics/Link
• Notes on version

Note on the gnuplot version

Some Commands Changed

The most recent version of gnuplot is ver.4.0, and some gnuplot
commands were slightly changed since ver.3.8 was released. We hope
that 4.0 will be getting more popular, however ver.3.7 is still widely
used. The scripts shown here are mainly for ver.3.7 if not
specified. When you see a [ver.4] sign in this site, this
means the function described there does not work for ver.3.7.

To use 3.8, one has to change some commands.

• set / unset
• set linestyle / set style line

To turn of some setting, we have used set no.... This
still works for ver.3.8, but the unset command is
recommended. For example, to remove a legend unset key
instead of set nokey .

gnuplot> set nokey
^
warning: deprecated syntax, use "unset"
gnuplot> unset key
gnuplot>

The set linestyle command which I often use in this site
is no longer available.

gnuplot> set linestyle 1 lt 4 lw 3

The command above must be rewrite as

gnuplot> set style line 1 lt 4 lw 3