bp_demo.m

反馈神经网路BP算法程序！！可以与RBF进行比较

load housing
[p2,ps]=mapminmax(p);
[t2,ts]=mapminmax(t);
[trainV,val,test]=dividevec(p2,t2,0.20,0.20);
%net=newff(minmax(p2),[20 1]);
net=newff(p2,t2,20);
[net,tr]=train(net,trainV.P,trainV.T,[],[],val,test);
a2=sim(net,p2);
a=mapminmax('reverse',a2,ts);
[m,b,r]=postreg(a,t);