Robot is a general purpose open-source plotting and data analysis program. The main documentation is contained in the file Docs/RobotManual.ps. If you publish a paper in a journal which includes a graph produced by Robot I'd be grateful if you could send me a reprint. If you wish to cite this program you may reference: Corbet, R.H.D., Larkin, C. & Nousek, J.A. Proceedings of "Astronomical Data Analysis and Software Systems", Tucson, November, 1991. Astronomical Society of the Pacific Conference Series, 1992, Vol. 25, 106. (ISBN 0-937707-44-9) ______ Robin Corbet WWW: http://lheawww.gsfc.nasa.gov/~corbet/robot.html