I wish to train a neural network with four input neurones and two output neurones. Two output neurones corresponding to average surface roughness and maximum forming angle resulting from the forming process. surface roughness is in the range of 2-8 micron while max. forming angle varies from 76-85 degrees.  How should  I train the network in Matlab? Is it similar like 4-n-1 that instead of 1 output neurone, I should select two neurones in the output layer?