Chen, >Is there any GA toolbox for Octave? I googled it and found an old post >in 1999 about it, but I can not find it in the optimization directory. >How is it compared to the toolbox in Matlab? I donot know of a GA implementation for Octave. However it is a doable to implement OCT files for any freely available Genetic Algo' Library like (PGAL http://freshmeat.net/projects/pgal/, or Open MetaHuristic http://ometah.berlios.de/index.php/Main_Page)