function?[bestmembestvalnfeval]?=?devec3（fnameVTRDXVminXVmaxyNPitermaxFCRstrategyrefresh）;
%?minimization?of?a?user-supplied?function?with?respect?to?x（1:D）
%?using?the?differential?evolution?（DE）?algorithm?of?Rainer?Storn
%?（http://www.icsi.berkeley.edu/~storn/code.html）
%?
%?Special?thanks?go?to?Ken?Price?（kprice@solano.community.net）?and
%?Arnold?Neumaier?（http://solon.cma.univie.ac.at/~neum/）?for?their
%?valuable?contributions?to?improve?the?code.
%?
%?Strategies?with?exponential?crossover?further?input?variable
%?tests?and?arbitrary?function?name?implemented?by?Jim?Van?Zandt?
%??12/97.
%
%?Output?arguments:
%?----------------
%?bestmem????????parameter?vector?with?best?solution
%?bestval????????best?objective?function?value
%?nfeval?????????number?of?function?evaluations
%
%?Input?arguments:??
%?---------------
%
%?fname??????????string?naming?a?function?f（xy）?to?minimize
%?VTR????????????“Value?To?Reach“.?devec3?will?stop?its?minimization
%????????????????if?either?the?maximum?number?of?iterations?“itermax“
%????????????????is?reached?or?the?best?parameter?vector?“bestmem“?
%????????????????has?found?a?value?f（bestmemy）?<=?VTR.
%?D??????????????number?of?parameters?of?the?objective?function?
%?XVmin??????????vector?of?lower?bounds?XVmin（1）?...?XVmin（D）
%????????????????of?initial?population
%????????????????***?note:?these?are?not?bound?constraints!!?***
%?XVmax??????????vector?of?upper?bounds?XVmax（1）?...?XVmax（D）
%????????????????of?initial?population
%?y		????????problem?data?vector?（must?remain?fixed?during?the
%????????????????minimization）
%?NP?????????????number?of?population?members
%?itermax????????maximum?number?of?iterations?（generations）
%?F??????????????DE-stepsize?F?from?interval?[0?2]
%?CR?????????????crossover?probability?constant?from?interval?[0?1]
%?strategy???????1?-->?DE/best/1/exp???????????6?-->?DE/best/1/bin
%????????????????2?-->?DE/rand/1/exp???????????7?-->?DE/rand/1/bin
%????????????????3?-->?DE/rand-to-best/1/exp???8?-->?DE/rand-to-best/1/bin
%????????????????4?-->?DE/best/2/exp???????????9?-->?DE/best/2/bin
%????????????????5?-->?DE/rand/2/exp???????????else??DE/rand/2/bin
%????????????????Experiments?suggest?that?/bin?likes?to?have?a?slightly
%????????????????larger?CR?than?/exp.
%?refresh????????intermediate?output?will?be?produced?after?“refresh“
%????????????????iterations.?No?intermediate?output?will?be?produced
%????????????????if?refresh?is?%
%???????The?first?four?arguments?are?essential?（though?they?have
%???????default?values?too）.?In?particular?the?algorithm?seems?to
%???????work?well?only?if?[XVminXVmax]?covers?the?region?where?the
%???????global?minimum?is?expected.?DE?is?also?somewhat?sensitive?to
%???????the?choice?of?the?stepsize?F.?A?good?initial?guess?is?to
%???????choose?F?from?interval?[0.5?1]?e.g.?0.8.?CR?the?crossover
%???????probability?constant?from?interval?[0?1]?helps?to?maintain
%???????the?diversity?of?the?population?and?is?rather?

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

?????文件??????13663??2006-04-16?06:41??基于遺傳算法matlab優化程序\devec3.m

?????文件????????428??2006-04-16?06:42??基于遺傳算法matlab優化程序\rosen.m

?????文件???????1691??2006-04-16?06:42??基于遺傳算法matlab優化程序\run1.m

?????文件????????784??2006-04-16?06:42??基于遺傳算法matlab優化程序\run2.m

?????文件???????5825??2006-04-16?06:42??基于遺傳算法matlab優化程序\yue.m

?????文件???????5797??2010-04-08?21:32??基于遺傳算法matlab優化程序\yue2.m

?????目錄??????????0??2010-04-14?13:35??基于遺傳算法matlab優化程序

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