When the parameters of the model have been entered, the associate error criterions can be computed by clicking on the Test button. The three error measures are displayed. Several different smoothing parameter value sets can be sequentially tested and compared.
An automatic optimization of the smoothing parameters is implemented via the button Optimize. The corresponding results and error measures are displayed. The optimized values for the model smoothing coefficients can be transferred into the corresponding cells simply by clicking on the line generated by the optimization process.