Problem with differential equation net

Hello,

I have a problem with using net in following code. Thank you in advance.

clear all
x=-1:0.1:3;
z=x;
net=newff(minmax(x),[2,1],{'logsig','purelin'})
net.trainparam.epochs=100;
net.trainparam.goal=0.0001;
net=train(net,x,z);
y=sim(net,x);
plot(x,z,'r',x,y);grid figure(gcf)

[KSSV]

What problem you have? YOu have to mention the error/ problem.

[KSSV]

Melda Harlova commented: I have already mentioned it. In this line net=newff(minmax(x),[2,1],{'logsig','purelin'}). I have no idea why.

[Adam Danz]

Also see

https://www.mathworks.com/matlabcentral/answers/499050-differential-equation-and-problem-with-minmax