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multilevelPSA (version 1.3.0)

cv.trans.psa: Transformation of Factors to Individual Levels

Description

The function cv.trans.psa takes a covariate data frame and replaces each categorical covariate of n >=3 levels with n new binary covariate columns, one for each level. Transforms covariate dataframe for use with the function cv.bal.psa.

Usage

cv.trans.psa(covariates, fcol = NULL)

Arguments

covariates

A dataframe of covariates, presumably some factors.

fcol

An optional vector containing the factor columns in the covariate data frame. In NULL (default) routine to identify factors internally.

Author

James E. Helmreich James.Helmreich@Marist.edu

Robert M. Pruzek RMPruzek@yahoo.com

KuangNan Xiong harryxkn@yahoo.com

Jason Bryer jason@bryer.org

Details

NOTE: This function originated in the PSAgraphics package. It has been adapted here for the multilevelPSA package.