On Thu, 13 May 2010, Talha Yalta wrote: Well, matplotlib is a python library, so adapting gretl to use it would be a huge coding effort. Plus, is there any example in the page you link of something gnuplot can't do? Make no mistake: beside other advantages (stability, portability, ...), gnuplot is an _extremely_ powerful graphics engine. Riccardo (Jack) Lucchetti Dipartimento di Economia Università Politecnica delle Marche r.lucchetti(a)univpm.it http://www.econ.univpm.it/lucchetti