prbnmcn-gnuplot is a declarative overlay over Gnuplot. The library produces self-contained Gnuplot scripts, and can either simply write them to some file or display them to various backends. Not all features of Gnuplot are supported, additional features will be added as needed.
Have a look at the documentation in Plot for more details.
Plot prbnmcn-gnuplot: a self-contained interface to Gnuplot.