The SDL Component Suite is an industry leading collection of components supporting scientific and engineering computing. Please visit the SDL Web site for more information....


Unit: SDL_statis
Class: TPLSModel
Declaration: property ClassifThreshold: TVector;

The readonly vector property ClassifThreshold returns the optimum classifier thresholds for PLS discriminant analyses. The length of the vector is YMat.NrOfColumns.

Please note that the property IsDiscriminantModel has to be TRUE and the method CalculateModel has to be called prior to reading ClassifThreshold, otherwise the returned values will be invalid.

Hint: The optimum threshold is determined by analyzing the "receiver operating characteristic" (ROC) of the classifier. The returned value for a particular classifier is equal to the mean of the best discriminant threshold and the two neighboring thresholds. This averaging is performed to improve stability of the threshold if the discrimination area is "spoiled" by single incorrectly classified observations.

Last Update: 2012-Oct-20