function?[BestCVaccuracyBestcBestgga_option]?=?gaSVMcgForClass（train_labeltrain_dataga_option）
%?gaSVMcgForClass

%%
%?by?faruto
%Email:patrick.lee@foxmail.com?QQ:516667408?http://blog.sina.com.cn/faruto?BNU
%last?modified?2010.01.17

%%?若轉載請注明：
%?faruto?and?liyang??LIBSVM-farutoUltimateVersion?
%?a?toolbox?with?implements?for?support?vector?machines?based?on?libsvm?2009.?
%?
%?Chih-Chung?Chang?and?Chih-Jen?Lin?LIBSVM?:?a?library?for
%?support?vector?machines?2001.?Software?available?at
%?http://www.csie.ntu.edu.tw/~cjlin/libsvm

%%?參數初始化
if?nargin?==?2
????ga_option?=?struct（‘maxgen‘200‘sizepop‘20‘ggap‘0.9...
????????‘cbound‘[0100]‘gbound‘[01000]‘v‘5）;
end
%?maxgen:最大的進化代數默認為200一般取值范圍為[100500]
%?sizepop:種群最大數量默認為20一般取值范圍為[20100]
%?cbound?=?[cmincmax]參數c的變化范圍默認為（0100]
%?gbound?=?[gmingmax]參數g的變化范圍默認為[01000]
%?v:SVM?Cross?Validation參數默認為5

%%
MAXGEN?=?ga_option.maxgen;
NIND?=?ga_option.sizepop;
NVAR?=?2;
PRECI?=?20;
GGAP?=?ga_option.ggap;
trace?=?zeros（MAXGEN2）;

FieldID?=?...
[rep（[PRECI][1NVAR]）;[ga_option.cbound（1）ga_option.gbound（1）;ga_option.cbound（2）ga_option.gbound（2）];?...
[11;00;01;11]];

Chrom?=?crtbp（NINDNVAR*PRECI）;

gen?=?1;
v?=?ga_option.v;
BestCVaccuracy?=?0;
Bestc?=?0;
Bestg?=?0;
%%
cg?=?bs2rv（ChromFieldID）;

for?nind?=?1:NIND
????cmd?=?[‘-v?‘num2str（v）‘?-c?‘num2str（cg（nind1））‘?-g?‘num2str（cg（nind2））];
????ObjV（nind1）?=?svmtrain（train_labeltrain_datacmd）;
end
[BestCVaccuracyI]?=?max（ObjV）;
Bestc?=?cg（I1）;
Bestg?=?cg（I2）;

%%
while?1????
%?for?gen?=?1:MAXGEN
????FitnV?=?ranking（-ObjV）;
????
????SelCh?=?select（‘sus‘ChromFitnVGGAP）;
????SelCh?=?recombin（‘xovsp‘SelCh0.7）;
????SelCh?=?mut（SelCh）;
????
????