Additive modelling offers a flexible framework in which a response variable is expressed as the sum of smooth functions of predictors. Central to this approach are smoothing techniques that control ...
where belongs to the set of all continuously differentiable functions with square integrable second derivatives, and is a positive constant. Note The computations for a thin-plate smoothing spline are ...
The TRANSREG procedure now supports smoothing spline transformations in the MODEL statement. The SMOOTH option specifies a noniterative transform, and the SSPLINE option specifies an iterative ...