Record Display for the EPA National Library Catalog

RECORD NUMBER: 14 OF 24

OLS Field Name OLS Field Data
Main Title Macro for Estimating the Box-Cox Power Transformation.
Author Stead, A. G. ;
CORP Author Health Effects Research Lab., Research Triangle Park, NC.
Year Published 1987
Report Number EPA/600/D-87/079;
Stock Number PB87-166906
Additional Subjects Macroprogramming ; Transformations ; Statistical analysis ; Multivariate analysis ; Linear programming ; Tables(Data) ;
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB87-166906 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 11p
Abstract
In their classic paper, Box and Cox (1964) demonstrated how a dependent variable could be transformed to satisfy simultaneously, assumptions implicit in the analysis of linear models. For the class of analyses in which the response of interest is positive and where no transformation of independent variables is considered, a SAS macro is presented which makes the estimation of this power transformation relatively easy. The use of the macro is illustrated with data taken from the original article of Box and Cox. Its application in investigating the effects of such a transformation on non-additivity is also demonstrated.