News FeedIf you're not sure what GnuPlot is, here's a quick introduction, courtesy of gnuplot.info:
Gnuplot is a portable command-line driven interactive data and function plotting utility for UNIX, IBM OS/2, MS Windows, DOS, Macintosh, VMS, Atari and many other platforms.
Gnuplot supports many types of plots in either 2D and 3D. It can draw using lines, points, boxes, contours, vector fields, surfaces, and various associated text. It also supports various specialized plot types.
Basically, it's a pretty useful utility for plotting data - great! Now let's get on with how you use it.
First things first. Lets find out if GnuPlot is installed on your system. If you are running windows or OS X then, unless you have installed it, it won't be there. On linux, depending upon your system, you may or may not have it - run the following at the command-line to see if you have it (as always - ignore the numbers, they are just there to indicate line numbering):