matlab遗传算法工具箱函数及实例讲解 zz.htm
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850 行
<BR></SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">【程序清单】</SPAN><SPAN
lang=EN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma"> <BR>
</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">％源函数的</SPAN><SPAN
lang=EN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma">matlab</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">代码</SPAN><SPAN
lang=EN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma"> <BR>
function [eval]=f(sol) <BR>
numv=size(sol,2); <BR>
x=sol(1:numv); <BR>
eval=-20*exp(-0.2*sqrt(sum(x.^2)/numv)))-exp(sum(cos(2*pi*x))/numv)+22.71282;
<BR> %</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">适应度函数的</SPAN><SPAN
lang=EN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma">matlab</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">代码</SPAN><SPAN
lang=EN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma"> <BR>
function [sol,eval]=fitness(sol,options) <BR>
numv=size(sol,2)-1; <BR>
x=sol(1:numv); <BR>
eval=f(x); <BR> eval=-eval;
<BR> %</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">遗传算法的</SPAN><SPAN
lang=EN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma">matlab</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">代码</SPAN><SPAN
lang=EN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma"> <BR>
bounds=ones(2,1)*[-5 5]; <BR>
[p,endPop,bestSols,trace]=ga(bounds,'fitness') <BR><BR></SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">注：前两个文件存储为</SPAN><SPAN
lang=EN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma">m</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">文件并放在工作目录下，运行结果为</SPAN><SPAN
lang=EN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma"> <BR>
p = <BR> 0.0000 -0.0000 0.0055 <BR><BR><BR><BR></SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">大家可以直接绘出</SPAN><SPAN
lang=EN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma">f(x)</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">的图形来大概看看</SPAN><SPAN
lang=EN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma">f</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">（</SPAN><SPAN
lang=EN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma">x</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">）的最值是多少，也可是使用优化函数来验证。</SPAN><SPAN
lang=EN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma">matlab</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">命令行执行命令：</SPAN><SPAN
lang=EN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma">
<BR> fplot('x+10*sin(5*x)+7*cos(4*x)',[0,9])
<BR><BR><BR>evalops</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">是传递给适应度函数的参数，</SPAN><SPAN
lang=EN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma">opts</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">是二进制编码的精度，</SPAN><SPAN
lang=EN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma">termops</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">是选择</SPAN><SPAN
lang=EN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma">maxGenTerm</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">结束函数时传递个</SPAN><SPAN
lang=EN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma">maxGenTerm</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">的参数，即遗传代数。</SPAN><SPAN
lang=EN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma">xoverops</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">是传递给交叉函数的参数。</SPAN><SPAN
lang=EN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma">mutops</SPAN><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: Tahoma; mso-ascii-font-family: Tahoma; mso-bidi-font-family: Tahoma">是传递给变异函数的参数，具体含义我也没弄懂，我觉得有点怪。</SPAN><SPAN
lang=EN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Tahoma"><BR><BR>[ Last
edited by Supper on 2004-4-1 at 17:13 ]</SPAN></P>
<P class=postfoot>posted on 2004年07月05日 7:15 PM </P></DIV><LINK
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<H4><A title="permalink: 回复：matlab遗传算法工具箱函数及实例讲解 zz"
href="http://blog.csdn.net/yuanqingfei/articles/34613.aspx#85815">#</A> <A
name=85815></A>回复：matlab遗传算法工具箱函数及实例讲解 zz <SPAN>2004-08-26 8:34 PM </SPAN><A
id=Comments.ascx_CommentList__ctl0_NameLink target=_blank>fair</A> </H4>
<P>ga函数不任啊 <A id=Comments.ascx_CommentList__ctl0_EditLink
href="javascript:__doPostBack('Comments.ascx$CommentList$_ctl0$EditLink','')"></A></P>
<H4><A title="permalink: 回复：matlab遗传算法工具箱函数及实例讲解 zz"
href="http://blog.csdn.net/yuanqingfei/articles/34613.aspx#85816">#</A> <A
name=85816></A>回复：matlab遗传算法工具箱函数及实例讲解 zz <SPAN>2004-08-26 8:34 PM </SPAN><A
id=Comments.ascx_CommentList__ctl1_NameLink target=_blank>fair</A> </H4>
<P>ga函数不任啊 <A id=Comments.ascx_CommentList__ctl1_EditLink
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