function?[OUTvarargout]=PSO（structure）
D=3;
rand（‘state‘sum（100*clock））;
if?nargin????error（‘Not?enough?arguments.‘）;
end

????
%?PSO?PARAMETERS
???VRmin=ones（D1）*-20;?
???VRmax=ones（D1）*20;????
???VR=[VRminVRmax];
???minmax?=?1;

P?=[1?2000?20?4?2?2?0.9?0.2?1500?2?1e-5?20?1];
df??=?P（1）;
me??=?P（2）;
ps??=?P（3）;
mv??=?P（4）;
ac1?=?P（5）;
ac2?=?P（6）;
iw1?=?P（7）;
iw2?=?P（8）;
iwe?=?P（9）;
flagg=P（10）;
ergrd=P（11）;
ergrdep=P（12）;
plotflg=P（13）;

%?PLOTTING
?message?=?sprintf（‘PSO:?%%g/%g?iterations?GBest?=?%%g.\n‘me）;

pos=40*rand（psD）-20;
vel=8*rand（psD）-4;

?
%?initial?pbest?positions?vals
?pbest=pos;
?
?for?j=1:ps??%?start?particle?loop
????numin=‘0‘;
????for?i=1:D
????????numin=strcat（numin‘‘num2str（pos（ji）））;
????end
%?????evstrg=strcat（‘feval（‘‘‘functname‘‘‘‘numin（2:end）‘structure‘‘）‘）;??
evstrg=strcat（‘feval（‘‘myMI‘‘‘numin（2:end）‘structure‘‘）‘）;
????out（j）=eval（evstrg）;?????%?evaluate?desired?function?with?particle?j??????
?end
?
?pbestval=out;???%?initially?pbest?is?same?as?pos

%?assign?initial?gbest?here?also?（gbest?and?gbestval）
?if?minmax==1
????[gbestvalidx1]=max（pbestval）;??%?this?picks?gbestval?when?we?want?to?maximize?the?function
?elseif?minmax==0
????[gbestvalidx1]=min（pbestval）;??%?this?works?for?straight?minimization
?end
?gbest=pbest（idx1:）;??%?this?is?gbest?position
?tr（1）=gbestval;???????%?save?for?output

%?start?PSO?iterative?procedures
cnt=0;?%?counter?used?for?updating?display?according?to?df?in?the?options
cnt2=0;?%?counter?used?for?the?stopping?subroutine?based?on?error?convergence


for?i=1:me??%?start?epoch?loop?（iterations）
???if?flagg==0???%?randimization?control?one?random?set?for?each?epoch
???????rannum1=rand（1）;??
???????rannum2=rand（2）;
???end
???
???for?j=1:ps??%?start?particle?loop
???????
?????if?flagg==1???%?randomization?control?one?random?set?for?each?particle?at?each?epoch
?????????rannum1=rand（1）;
?????????rannum2=rand（1）;
?????end

?????numin=‘0‘;
?????for?dimcnt=1:D
?????????numin=strcat（numin‘‘num2str（pos（jdimcnt）））;
?????end
%??????evstrg=strcat（‘feval（‘‘‘functname‘‘‘‘numin（2:end）‘structure‘‘）‘）;?
evstrg=strcat（‘feval（‘‘myMI‘‘‘numin（2:end）‘structure‘‘）‘）;
?????out（j）=eval（evstrg）;?????%?evaluate?desired?function?with?particle?j??
?????e（j）?=?out（j）;??????????????%?use?to?minimize?or?maximize?function?to?unknown?values

?????%SSEhist（j）?=?sumsqr（e）;????%?sum?squared?‘error‘?for?jth?particle?（averages?if?there?is?more?than?one?output）
?????
????%?update?pbest?to?reflect?whether?searching?for?max?or?min?of?function
?????if?minmax==0
???????if?pbestval（j）>=e（j）;
??????????pbestval（j）=e（j）;
??????????pbest（j:）=pos（j:）;
???????end
?????elseif?minmax==1
???????if?pbestval（j）<=e（j）;
???????????pbestval（j）=e（j）;
???????????pbest（j:）=pos（j:）;
???????end
?????end
?
??????????
????%?assign?gbest?by?finding?minimum?of?all?particle?pbests?
?????if?minmax==1
???????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????5902??2005-10-19?20:10??SUSAN_CORNER_MATCH.m

?-rw-r--r--???????227??2011-08-12?15:27??readme_verysource.com.txt

-----------?---------??----------?-----??----

?????????????????6129????????????????????2