ANFIS模糊神经网络函数逼近报告(含源代码)

[x1,x2]=meshgrid(-1:0.1:1,-1:0.05:1); y=0.5*(pi*(x1.^2)).*sin(2*pi*x2); x11=reshape(x1,861,1); x12=reshape(x2,861,1); y1=reshape(y,861,1); trnData=[x11(1:2:861) x12(1:2:861) y1(1:2:861)]; chkData=[x11 x12 y1]; numMFs=5; mfType='gbellmf';epoch_n=20; in_fisMat=genfis1(trnData,numMFs,mfType); out_fisMat=anfis(trnData,in_fisMat,20); y11=evalfis(chkData(:,1:2),out_fisMat); x111=reshape(x11,41,21);x112=reshape(x12,41,21);y111=reshape(y11,41,21); subplot(221),mesh(x1,x2,y);title('期望输出'); subplot(222),mesh(x111,x112,y111);title('实际输出'); subplot(223),mesh(x1,x2,(y-y111));title('误差'); [x,mf]=plotmf(in_fisMat,'input',1); [x,mf1]=plotmf(out_fisMat,'input',1); subplot(224),plot(x,mf,'r-',x,mf1,'k--');title('隶属度函数变化');