rdp/ruby_gnuplot — pull request #13 by evnu (2012-08-08 12:57:19+00:00)
Title: Allow unsetting Gnuplot variables

This change adds a method Gnuplot::Plot.unset(var) to unset the Gnuplot variable var. As
the order of sets and unsets are important for Gnuplot, a new array "settings" was
introduced in which the set and unset tasks are accumulated.