A title of each plot appears in the key. By default the title is the function or file name as it appears on the plot command line. The title can be changed by using the title option. This option should precede any with option.
Syntax:
title "<title>"
where <title> is the new title of the plot and must be enclosed in quotes. The quotes will not be shown in the key.
Examples:
This plots y=x with the title 'x':
plot x
This plots the ``glass.dat'' file with the title 'surface of revolution':
splot "glass.dat" title 'surface of revolution'
This plots x squared with title ``x^2'' and ``data.1'' with title
'measured data':
plot x**2 title "x^2", "data.1" t 'measured data'
The title can be omitted from the key with the ``notitle'' option for plot and splot. This can be useful when some curves are plotted solely for decoration; for example, if one wanted a circular border for a polar plot, he could say:
Example:
set polar
plot my_function(x), 1 notitle
This would generate a key entry for ``my_function'' but not for ``1''. See the poldat.dem example.