Stepwise regression with PRESS and rank regression (program user's guide). [STEPWISE, up to 179 independent variables]

A stepwise multiple regression program is described. This program provides for either a forward stepwise or backward elimination solution to multiple regression problems. The program also provides PRESS values that can be used for subset selection as well as options for regression analysis on the ranks of the data and for a weighted regression analysis on either raw or rank transformed data. This document is written and designed for users of this STEPWISE program.