Hello Sean,

I'm still not getting it. 

When the parameters file is read, it will read "pop.subpop.0.file = pop.in" and find 
pop.in file.

Then anything in pop.in file has to be in a coded form of 
Number of Individuals: i5|....

In order to get this coded form, I need to use printIndividual() instead of 
Code.encode()?

Rui