SAS/STAT Software

GAM Procedure

The GAM procedure, experimental in Release 8.1, is production in Release 8.2 and includes the following new features:

In the MODEL statement, a local regression smoother (LOESS) is provided for univariate smoothing.
Several new distributions are available with the DIST= option in the MODEL statement. These include the gamma, Poisson, and binomial distributions.
The MAXITER=, MAXITSCORE=, EPSILON=, and EPSSCORE= options are provided for users to control the convergence of the backfitting algorithm and local score algorithm.
In the OUTPUT statement, the keywords PRED and ADIAG, UCLM, LCLM, RESID, STD, and ALL have been added. They request upper and lower component-wise confidence limits, residual, standard deviation, or all of them to be put into the output data set.
Multiple SCORE statements are now supported so that users can make predications on multiple data sets.