Inspired by Raymond's discovery, I decided to pull the trigger and perform the long-awaited upgrade of all floats to doubles in Fitness classes. This entailed: - Changing floats to doubles - Changing various FLOAT.. to DOUBLE.. - Changing float literals (0.0f, etc.) to double just in case - Removing unnecessary casts - Slight tweaks to the documentation This will be *sort* of non-backward compatible: you'll want to modify your applications so that you don't cast stuff to floats before setting the fitness or else you'll lose out on the extra expressivity. It was a lot of by-hand refactoring and I'm sure I messed something up. I'm a bit spooked about committing it, and haven't done so, unless I can get a few people to do some testing for me. Here's the classes which were affected. Can anyone volunteer for me? Sean FITNESS METHODS ec/Fitness.java ec/simple/SimpleFitness.java ec/gp/koza/KozaFitness.java ec/multiobjective/MultiObjectiveFitness.java SELECTION METHODS ec/select/BestSelection.java ec/select/BoltzmannSelection.java ec/select/FitProportionateSelection.java ec/select/GreedyOverselection.java ec/select/SUSSelection.java ec/select/SigmaScalingSelection.java ec/select/TournamentSelection.java STATISTICS ec/multiobjective/MultiObjectiveStatistics.java APPLICATION EXAMPLES ec/app/ant/Ant.java ec/app/bbob/BBOBenchmarks.java ec/app/coevolve1/CompetitiveMaxOnes.java ec/app/coevolve2/CoevolutionaryECSuite.java ec/app/ecsuite/ECSuite.java ec/app/edge/Edge.java ec/app/gpsemantics/Semantic.java ec/app/hiff/HIFF.java ec/app/klandscapes/KLandscapes.java ec/app/lawnmower/Lawnmower.java ec/app/lid/Lid.java ec/app/majority/MajorityGA.java ec/app/majority/MajorityGP.java ec/app/mona/Mona.java ec/app/moosuite/MooSuite.java ec/app/multiplexer/Multiplexer.java ec/app/multiplexerslow/Multiplexer.java ec/app/nk/NK.java ec/app/ordertree/OrderTree.java ec/app/parity/Parity.java ec/app/push/Regression.java ec/app/regression/Benchmarks.java ec/app/regression/Regression.java ec/app/regression/func/RegERC.java ec/app/royaltree/RoyalTree.java ec/app/sat/SAT.java ec/app/sum/Sum.java ec/app/tutorial1/MaxOnes.java ec/app/tutorial2/AddSubtract.java ec/app/tutorial3/OddRosenbrock.java ec/app/tutorial4/MultiValuedRegression.java ec/app/twobox/TwoBox.java