Emre, the manual describes the format fairly extensively. You cannot read c-style individuals into ECJ. Not only must it be a lisp style, but a very specific lisp style. Sean On Feb 24, 2014, at 5:04 AM, Emre AYDOĞAN <[log in to unmask]> wrote: > Hi, I want to read individuals from file for subpopulation. what is the format of > individuals in the subpopulations file? because when we write the output of the > tree we can describe it in params file like this "gp.tree.print-style = c". Is there > any option like this for reading individuals from file? or the format of the input > just must be lisp-style. > > Thanks.