Stepwise regression involves selection of independent variables to use in a model based on an iterative process of adding or removing variables.

We consider the problem of selecting grouped variables (factors) for accurate prediction in regression. Such a problem arises naturally in many practical situations with the multi-factor ...

An option enables you to specify the criterion for exclusion. STEPWISE stepwise regression, forward and backward. This method is a modification of the forward-selection method in that variables ...

This note discusses a problem that might occur when forward stepwise regression is used for variable selection and among the candidate variables is a categorical variable with more than two categories ...