In MATLAB we generally give Inputs and Target output values corresponding to target input values. For example, I have given values Load, Speed as Input and NOx, Smoke as output. Input Speed is 1200, 1400, 1600, 1800 and 2000 rpm and Load is 10, 20, 30 and 40 Nm. After training, I need the NOx and Smoke values at Load 12 Nm and speed 1708 rpm. How to find out? Neural Networks in MATLAB is perplexing, every paper explains that they give input, output and get R values graph. How to use the training further to get values at desired input points?