As the first step in the decommissioning of sasCommunity.org the site has been converted to read-only mode.


Here are some tips for How to share your SAS knowledge with your professional network.


The "Handy-Dandy, Quick-n-Dirty" Automated Contrast Generator - ASAS/IMLR Macro to Support the GLM, MIXED, and GENMOD Procedures

From sasCommunity
Revision as of 14:18, 22 September 2017 by Paulkaefer (Talk | contribs)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search
Paul A. Thompson, Ph.D.
Division of Biostatistics, School of Medicine, Washington University in St. Louis

Abstract

Contrasts are an important component of the armamentarium of the statistician. In the SAS/STAT ® GLM, ANOVA, MIXED, and GENMOD procedures, the contrasts are used to answer specific additional questions. In many cases, it is difficult to define contrasts which are estimable, or correctly formed. A macro which converts a question about differences between cells (defined in several ways) into estimable contrasts is described. This macro uses SAS/IML ® to convert the comparison into the various components of the comparison into SAS ® system contrasts. Using several macro components unique to the SAS/IML system, the macro generates contrasts which are invariably estimable.

Online materials