Gplot provides a convenient front-end for gnuplot.
It accepts a large set of options to generate a single plot
of one or more sets of data (overlaid as necessary).
This adds no new functionality to gnuplot, but makes it
easier to generate GNUPLOT input. Gnuplot input can be very
confusing when trying to assign useful colors (linetypes) or
linepoints since it uses numeric values that vary based on
the output device. gplot.pl allows you to set various
attributes with English words like 'red' and 'triangle',
thereby simplifying the interaction with gnuplot. This
program only supports Postscript, JPG, PBM, PNG and 'X" output.