matlab——神经网络答:newff建立网络,train训练网络,sim仿真进行预测 具体help以上三个函数 [nb,minb,maxb,na,mina,maxa]=premnmx(traindata,trainlabels);[nc]=tramnmx(test_patterns,minb,maxb);net=newff(minmax(traindata),[4,6,1],{'tansig',tansig','purelin'});net=train(net,nb,na);nd= sim(net,nc)...