Dear Simion,

You should write a small Java program and load your data inside it.

public static void main(String[] args) {
         // Load Data
         String outFileName ="c:\\MyExams\\out.stat";
         // Make data operations
         // Call Evolve
         try
         {
             Evolve.main(args);
         }
         catch(Throwable t)
         {
            // throw new Exception("Error in ECJ!", t);
         }
   }

After that in the evaluation function make your appropriate operations

On 23/5/2012 9:33 πμ, Simion Cristian wrote:
> Hello,
> I am new to ECJ and GP and i would like to ask some question. I have a
> problem of symbolic regression similar with the one in tutorial 4 but i
> would like to use my data (i have experimental data in files).How can use
> my data from files in the problem.