Sandeep, Something like this would work (in your parameters file) pop.subpop.0.species.min-gene.0 = 5 pop.subpop.0.species.max-gene.0 = 20 This sets the min/max values for the first gene. Note the zero-based indexing. Other genes are set similarly. Keith On Tue, 8 Mar 2005, Sandeep Mulgund wrote: > Hi, > > What's the proper syntax for setting min-gene and max-gene values on a > gene-by-gene basis? The tutorial examples show how to do it for the > entire species, but my problem has different min/max values for each > member of an IntegerVectorSpecies chromosome. > > Thanks, > > Sandeep >