Try: pop.subpop.0.file = $this.is.my.file The format of the individuals file must be the format created when the individuals are outputted using printIndividual(...) Sean On Feb 12, 2008, at 3:26 PM, Raghu Chaitanya Doppalapudi wrote: > HI, > I am trying to run ECJ application with some known population. How > to initialize the population ,is there any parametsr to load th > initial population from file. please help me regarding this. > Thanking you > Doppalapudi Raghu > More new features than ever. Check out the new AOL Mail!