In addition to the X Toolkit options, the following options may be specified on the command line when starting gnuplot or as resources in your ".Xdefaults" file:
-clear requests that the window be cleared momentarily before a
new plot is displayed.
-gray requests grayscale rendering on grayscale or color displays.
(Grayscale displays receive monochrome rendering by default.)
-mono forces monochrome rendering on color displays.
-persist plot windows survive after main gnuplot program exits
-raise raise plot window after each plot
-noraise do not raise plot window after each plot
-tvtwm requests that geometry specifications for position of the
window be made relative to the currently displayed portion
of the virtual root.
The options are shown above in their command-line syntax. When entered as resources in ".Xdefaults", they require a different syntax.
Example:
gnuplot*gray: on
gnuplot also provides a command line option (-pointsize <v>) and a resource, gnuplot*pointsize: <v>, to control the size of points plotted with the points plotting style. The value v is a real number (greater than 0 and less than or equal to ten) used as a scaling factor for point sizes. For example, -pointsize 2 uses points twice the default size, and -pointsize 0.5 uses points half the normal size.