1. Start with a copy of mse (or other performance function)
a. Enter the command: type mse
b. Copy and save the result under a different name, e.g., myperf
c. Modify it
d. Save it
e. Change the net property
net.perfornFcn = myperf;
f. Test it.
2. net.trainParam.max_fail = 10; %(or whatever)
3. Enter WITHOUT THE SEMICOLON!
net = fitnet
You will see a long list of default parameters that can be changed to your liking.
Hope this helps.
Thank you for formally accepting my answer
Greg
PS: This is explained in the website documentation section on custom functions.
