| fanyushan |
2010-07-19 14:12 |
fminsearch应用出错
我的M文件如下： DDxbIk t
function [G5]=fun(x); @}eEV[Lli
syms n1 n2 k1 k2 d; 2~dUnskyy
[subwave,nsub]=textread('subout.txt','%f %f'); t2skg
[filmwave,filmtran]=textread('filmtr.dat','%f %f'); Aslh}'$}-
[p,q]=size(subwave); U_i% @ {
for j=1:p; \UA\0p
wavel(j)=subwave(j,1); eG&\b-%
n(j)=n1+n2/((wavel(j))^2); d` %8qLIW
k(j)=k1*exp(k2/wavel(j)); O#LG$Y
n*
N(j)=n(j)-i*k(j); HK&Ul=^VN|
phase(j)=2*pi*N(j)*d/wavel(j); nGQc;p5;
ns(j)=nsub(j,1); zmH8 ^:-x
B(j)=cos(phase(j))+ns(j)*i*sin(phase(j))/N(j); 7=i8$v&GX
C(j)=i*N(j)*sin(phase(j))+ns(j)*cos(phase(j)); i[_ (0P+Da
T(j)=4*ns(j)/((B(j)+C(j))*conj(B(j)+C(j))); ,)/gy) ~#
ts(j)=1-((1-ns(j))/(1+ns(j)))^2; jr[(g:L
t1(j)=ts(j)*T(j); iO1ir+B\
tf(j)=filmtran(j,1)/100; P 4Vi~zMX
difference(j)=(t1(j)-tf(j))^2; ZByxC*Cz
end R=& 9 M4
G=symsum(difference(j),1,401); |os u4=s|
G1=subs(G,n1,sym('x(1)')); _gU:! :}
G2=subs(G1,n2,sym('x(2)')); L7i2is
G3=subs(G2,k1,sym('x(3)')); = og>& K
G4=subs(G3,k2,sym('x(4)')); nhV\ <
G5=subs(G4,d,sym('x(5)')); <A |X4;
?QA![
paKur%2u
x }\x3U
在matlab下运行 gJa48 pi
>> options=optimset('tolfun',1e-8,'tolx',1e-8); w>#{Nl 7gz
>> [xmin,value,flag,output]=fminsearch(@fun,[1.7,4000,0.005,400,500],options); ?,s]5
] V|hDU=t
MWdev .m:Z
结果出错如下： -R %T Dx
e"}JHXs
??? Conversion to double from sym is not possible. \Ui3=8(
Error in ==> fminsearch at 175 W X"iDz.
fv(:,1) = funfcn(x,varargin{:}); LR :PSgy
{!RDb'Zp
哪位高手给看看 hcn $uyP
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