newPGA.R

 Contains a new version of the "pga" function (made 
 available on Feb 28, 2009); the old version contains
 a subtle bug, now fixed in the new version.

main-func.s

 Contains various functions.

gcv-fitness.s

 Contains the fitness function we actually used; see
 Technometrics 48(4), 491-502, equation (8). 

example.txt

 Contains two examples for how to use my code. 

 EXAMPLE 1: The code used to create the sample movie 
 posted on this website. 

 EXAMPLE 2: The code used to run repeated simulation 
 experiment --- Technometrics 48(2), 491-502, 
 Sec 4.3 (variation 0).