Title

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>" | notitle

where <title> is the new title of the plot and must be enclosed in quotes. The quotes will not be shown in the key. A special character may be given as a backslash followed by its octal value ('' \345''). The tab character '' \t'' is understood. Note that backslash processing occurs only for strings enclosed in double quotes—use single quotes to prevent such processing.

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 by using the keyword notitle. 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. title '' is equivalent to notitle. title ' ' can be used to have a sample with no text.