fnextrm {daewr}

Find first term to enter forward stepwise regression that preserves model hierarchy

Description

This function finds the first term to enter a hierarchical forward stepwise regression. If the term is an interaction or quadratic term, the parent main effects are also included. This function is called by ihstep.R

Usage

fnextrm(y,des,prvm)

Arguments

y

input - this is a data frame containing a single numeric column of response data.

des

input - this is a data frame containing the numeric columns of the candidate independent variables. The column names of des are of length 1. The m three-level factors always preceed the c two-level factors in the design.

prvm

input - this is a vector of text names of the terms in the model. This is created as the value resulting from running ihstep or fhstep.

Value

returned vector of terms to be entered in the model at the next step.

Author(s)

John Lawson