Thanks! Yes, a bit off topic, but it was the closest post in which to ask this question that I had. I have used all three. GnuPlot is clearly fastest, but the

Thanks! Yes, a bit off topic, but it was the closest post in which to ask this question that I had. I have used all three. GnuPlot is clearly fastest, but the documentation and community help are limited. It seems not very flexible either.PGFPlots beats them all IMHO! I tend to think most of the Gnu software is in decline.