I'm using gplt and while good it seems sometimes to needlessly restrict access to gnuplot commands. Please consider a small change in the definition of size. Something like the following would be *very* helpful. def size(self,size=(1.,1.)) : if type(size) == StringType : cmd = 'set size ' + size else : cmd = 'set size %f,%f' % size self._replot(cmd) Please consider a general purpose communication command to set global gnuplot options. E.g., def replot(self,plotstr=""): if type(plotstr) == StringType : self._replot(plotstr) Thank you for this nice package! Alan Isaac