Train the network. The network uses the default Levenberg-Marquardt algorithm (trainlm) for training. For problems in which Levenberg-Marquardt does not produce as accurate results as desired, or for large data problems, consider setting the network training function to Bayesian Regularization (trainbr) or Scaled Conjugate Gradient (trainscg), respectively, with either

net.trainFcn = 'trainbr'; net.trainFcn = 'trainscg';