function?[InitFunction?CostFunction]?=?Ackley
InitFunction?=?@Init;
CostFunction?=?@Cost;
return

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function?[Population?OPTIONS]?=?Init（OPTIONS）
%?Initialize?the?population
if?~isfield（OPTIONS?‘MinDomain‘）
????OPTIONS.MinDomain?=?-30?*?ones（1?OPTIONS.numVar）;
end
if?~isfield（OPTIONS?‘MaxDomain‘）
????OPTIONS.MaxDomain?=?+30?*?ones（1?OPTIONS.numVar）;
end
OPTIONS.OrderDependent?=?false;?%?the?order?of?the?independent?variables?does?not?matter
OPTIONS?=?ComputeRandomShift（OPTIONS）;
Population?=?struct（‘chrom‘?cell（[1?OPTIONS.popsize]）?‘cost‘?cell（[1?OPTIONS.popsize]））;
for?popindex?=?1?:?OPTIONS.popsize
????chrom?=?OPTIONS.MinDomain?+?（OPTIONS.MaxDomain?-?OPTIONS.MinDomain）?.*?rand（1OPTIONS.numVar）;
????Population（popindex）.chrom?=?chrom;
end
return

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function?[Population]?=?Cost（Population?OPTIONS）
%?Compute?the?cost?of?each?member?in?Population
p?=?length（Population（1）.chrom）;
for?popindex?=?1?:?length（Population）
????sum1?=?0;
????sum2?=?0;
????for?i?=?1?:?p
????????x?=?Population（popindex）.chrom（i）?-?OPTIONS.ShiftAmount（i）;
????????sum1?=?sum1?+?x^2;
????????sum2?=?sum2?+?cos（2*pi*x）;
????end
????Population（popindex）.cost?=?20?+?exp（1）?-?20?*?exp（-0.2*sqrt（sum1/p））?-?exp（sum2/p）;????
end
return

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????1398??2013-10-29?14:37??Ackley.m
?????文件????????4330??2011-07-29?11:07??AckleyDisc.m
?????文件????????1798??2011-08-22?12:00??Fletcher.m
?????文件????????1425??2011-04-08?15:47??FourPeaks.m
?????文件????????1343??2011-08-22?12:00??Griewank.m
?????文件????????1460??2011-04-08?16:17??Pairs.m
?????文件????????1699??2011-08-22?12:00??Penalty1.m
?????文件????????1690??2011-08-22?12:01??Penalty2.m
?????文件????????1228??2011-08-22?12:01??Quartic.m
?????文件????????1255??2011-08-22?12:02??Rastrigin.m
?????文件????????1357??2013-10-29?14:36??Rosenbrock.m
?????文件????????1319??2012-01-26?13:26??Schwefel12.m
?????文件????????1238??2011-08-22?12:03??Schwefel221.m
?????文件????????1487??2013-10-29?14:32??Schwefel222.m
?????文件????????1260??2012-08-28?10:18??Schwefel226.m
?????文件????????1227??2012-05-17?14:31??Sphere.m
?????文件????????1236??2012-05-17?14:31??Step.m