Jgraph is a program that takes the description a graph or graphs as input, and produces a PostScript file on the standard output. Jgraph is ideal for plotting any mixture of scatter point graphs, line graphs, and/or bar graphs, and embedding the output into LaTeX, or any other text processing system that can read PostScript

WWW: http://www.cs.utk.edu/~plank/plank/jgraph/jgraph.html
