Hi Abdulaziz,
The "perform" function returns the performance of the trained network calculated according to the net.performFcn and net.performParam property values.
The output argument "tr" is a structure which contains information in fields such as:
- Training, data division, and performance functions and parameters
- Data division indices for training, validation and test sets
- Data division masks for training validation and test sets
- Number of epochs (num_epochs) and the best epoch (best_epoch).
Please refer to their respective documentation for more information : train shallow neural networks, perform. I hope this helps!
