I am developing a feedforward neural network with MATLAB NFTOOL BOX. The model has 9 inputs and 4 outputs. The issue is, I would love to get the individual graphs, R values and MSE of each output. But I noticed only four graphs representing the training, validation, testing and all data are provided. Also, just a single MSE and R value is provided.
My question is, how can I derive the graphs, R values and MSE of each of the 4 outputs?