source: branches/OKBJavaConnector/ECJClient/src/ec/es/es.params @ 6152

# Copyright 2006 by Sean Luke and George Mason University
# Licensed under the Academic Free License version 3.0
# See the file "LICENSE" for more information

parent.0 = ../simple/simple.params

# 
# The following parameter file will set up (mu,lambda) evolution,
# single-threaded, no coevolution, no exchanging,
# no cross-population breeding, using generational evolution,
# simple fitness, popsize=1024, etc. 
# You'll need to fill in some of the gaps.
#
# This file tweaks some features in simple.params.  Perhaps you might
# change parent.0 to ../gp/koza/koza.params if you're doing GP (see below)
#
# Some notes: 
# 1. To perform truncation selection, include the ec.es.ESSelection
#    selection method in your breeding pipeline.  You can mix in other
#    selection methods along with it.
#
# 2. You need to specify the mu and lambda values for each of your
#    subpopulations.  This is different than past versions of ECJ where
#    you didn't specify the lambda -- it was inferred from the subpopulation
#    size.  However, now, you are permitted to have whatever initial
#    subpopulation size you like.
#
# 3. If you want to do EP-style 50/50 truncation selection, I believe the
#    way to do it is to set your mu value to the same as the lambda,
#    and use ec.es.MuPlusLambdaBreeder.
#

# We begin by specifying the mu value for the first subpopulation,
# You need to change this and/or specify mu values for additional
# subpopulations as needed.  We'll default the mu to 1.
# We'll default the lambda to 10.  What the heck.
# ================================================================

es.mu.0 =       1
es.lambda.0 =       10
breed =         ec.es.MuCommaLambdaBreeder

# you'll need to remember to set up the system so that one, and exactly
# one, selection method called each time is an ESSelectionMethod.  Here's
# how you could do it if you were doing Koza-style GP stuff:

# gp.koza.reproduce.source.0 = ec.es.ESSelection
# gp.koza.xover.source.0 = ec.es.ESSelection
# gp.koza.xover.source.1 = ec.select.TournamentSelection
# gp.koza.mutate.source.0 = ec.es.ESSelection