Rui CarmoGnuplot is a portable command-line driven interactive data and function plotting utility for just about any platform you care to name, able to plot massive (several hundred thousand) data points in several useful ways to a variety of output formats.
For bog-standard pie and bar charts, however, ploticus is a better choice.
Resources:
| Date | Link | Notes |
|---|---|---|
| Nov 07 | gnuplot tips | Worth keeping around for reference. |