What I want to do is test various combinations of entries/limits/stops. I have the statistical data (Dow) so that I can input the data - of size of upmoves as a pluses above and size of down moves as minuses below - a given price line for a market day. Is there some very simple arithmetical software or trading facility which is available to do this? Does anyone have any experience of doing something similar? But if not, any help or comment would very much appreciated.