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[ÇóÖú] ANFIS´úÂëÔ­ÀíÇó½â´ð

%% Your Solution
clc;close all;clear all;
numPts=51;
x=linspace(-1,1,numPts);
y=0.5*sin(pi*x)+0.3*sin(3*pi*x)+0.1*sin(5*pi*x);
data=[x' y'];
trnData=data(1:2:numPts,;%%ѵÁ·Êý¾Ý
chkData=data(2:2:numPts,;%%¼ìÑéÊý¾Ý
%% »æÖÆÑµÁ·ºÍ¼ìÑéÊý¾ÝµÄ·Ö²¼ÇúÏß
subplot(2,2,1);plot(trnData(:,1),trnData(:,2),'o',chkData(:,1),chkData(:,2),'x');
legend('ѵÁ·Êý¾Ý','¼ìÑéÊý¾Ý','location','northwest');%%Ìí¼ÓͼÀý
title('ѵÁ·Êý¾ÝºÍ¼ìÑéÊý¾ÝµÄ·Ö²¼ÇúÏß');%%Ìí¼ÓͼÌâ
xlabel('(1)');%%Ìí¼ÓXÖá±êÌâ

%% ²ÉÓÃgenfis1()º¯ÊýÖ±½ÓÓÉѵÁ·Êý¾ÝÉú³ÉTakagi-SugenoÐÍÄ£ºýÍÆÀíϵͳ
numMFS=5; mfType='gbellmf';              %ÊäÈëÁ¥Êô¶Èº¯ÊýµÄ¸öÊý¡¢ÀàÐÍ
fisMat=genfis1(trnData,numMFS,mfType);       %³õʼģºýÍÆÀíϵͳ
subplot(2,2,2);[x1,mf]=plotmf(fisMat,'input',1);
plot(x1,mf);title('ϵͳѵÁ·Ç°µÄÁ¥Êô¶Èº¯Êý');xlabel('(2)');

%% ¸ù¾Ý¸ø¶¨µÄѵÁ·Êý¾Ý£¬ÀûÓú¯Êýanfis()ѵÁ·×ÔÊÊÓ¦Éñ¾­Ä£ºýϵͳ
epochs=40;                      %ѵÁ·´ÎÊýΪ40
trnOpt=[epochs NaN NaN NaN NaN];
disOpt=[ ];
[Fis, error, stepsize, chkFis, chkEr]=anfis(trnData,fisMat,trnOpt,disOpt,chkData);

%% »æÖÆÄ£ºýÍÆÀíϵͳÓɺ¯Êýanfis()ѵÁ·ºóµÄÊäÈë±äÁ¿µÄÁ¥Êô¶Èº¯ÊýÇúÏß
subplot(2,2,3);
[x1,mf]=plotmf(Fis,'input',1);
plot(x1,mf);
title('ϵͳѵÁ·ºóµÄÁ¥Êô¶Èº¯Êý');
xlabel('(3)');

%% ¼ÆËãѵÁ·ºóÉñ¾­Ä£ºýϵͳµÄÊä³öÓëѵÁ·Êý¾ÝµÄ¾ù·½¸ùÎó²îtrnRMSE
trnOut1=evalfis(trnData(:,1),Fis);        %ѵÁ·ºóÉñ¾­Ä£ºýϵͳÊä³ö
trnOut2=evalfis(trnData(:,1),chkFis);
trnRMSE1=norm(trnOut1-trnData(:,2))/sqrt(length(trnOut1));
trnRMSE2=norm(trnOut2-trnData(:,2))/sqrt(length(trnOut2));

%% ¼ÆËãºÍ»æÖÆÉñ¾­Ä£ºýÍÆÀíϵͳµÄÊä³öÇúÏß
anfis_y1=evalfis(x,Fis);
anfis_y2=evalfis(x,chkFis);
subplot(2,2,4);plot(x,y,'-',x,anfis_y1,'x',x,anfis_y2,'o');
title('º¯ÊýÊä³öºÍANFISϵͳÊä³ö');xlabel('(4)');
legend('Ô­º¯ÊýµÄÊä³ö','ANFIS-1µÄÊä³ö','ANFIS-2µÄÊä³ö','location','northwest')
writefis(Fis,'ex6-3');
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trnOut1=evalfis(trnData(:,1),Fis);        %ѵÁ·ºóÉñ¾­Ä£ºýϵͳÊä³ö
trnOut2=evalfis(trnData(:,1),chkFis);
ΪʲôÕâÀïtrnOut1ºÍtrnOut2µÄÊäÈëÊý¾Ý¶¼ÊÇtrnData(:,1),£¬£¬£¬¶øtrnOut2µÄÊäÈëÊý¾Ý²»ÊÇchkData(:,1)¡£

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