I have created a neural network with a regression output layer. My response as well as predictor data are 1000*2 matrices. Currently, I am only able to specify a single data sample to the network when I use trainNetwork, but I am not able to feed the entire dataset. I tried to solve this problem by using 3D arrays, but that is not working. Can anyone please help me out? Currently I am only able to input: trainNetwork(L1, P1, layers, options), and I have matrices ranging from L1 to L50 and similarly for P, and I want to specify all these matrices as response and predictor data respectively.