DTREG is a powerful statistical analysis program that generates classification and regression decision trees that model data and can be used to predict values. Single-tree, TreeBoost and Decision tree Models can be created.

NLREG performs nonlinear regression and curve fitting. NLREG fits a mathematical function whose form you specify to a set of data values. Virtually any type of function can be fitted. NLREG includes a programming language similar to C that you use for describing the function to be fitted. Two dimensional line and three dimensional surface plots can be generated.