Analysis of Variance: A Comparison Between SAS and S-PLUS

  • Melvin Olson
Chapter

Abstract

The purpose of this chapter is to show how to perform a simple analysis of variance (ANOVA) model in S-Plus. Many practicing statisticians in the pharmaceutical industry think of S-Plus as a nice exploratory tool, but continue to use SAS to run their confirmatory models. The point to be made here is not that there is necessarily anything wrong with that practice, but rather that an alternative exists. In fact, not only does S-Plus have excellent facilities for confirmatory statistics and modeling, but when combined with its unsurpassed graphics and programming capabilities, it is a very attractive package indeed.

Keywords

Placebo Covariance Lime Resid 

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References

  1. Koch, G. G., and Gansky, S. A. (1996). Statistical considerations for multiplicity in confirmatory protocols. Drug Information Journal 30, 523–534.CrossRefGoogle Scholar
  2. Laird, N. M., and Ware, J. H. (1982). Random-effects for longitudinal data. Biometrics 38, 963–974.CrossRefGoogle Scholar
  3. SAS (1997). SAS/STAT ® Software: Changes and Enhancements through Release 6.12. SAS Institute Documentation, SAS Institute.Google Scholar

Copyright information

© Springer Science+Business Media New York 2001

Authors and Affiliations

  • Melvin Olson
    • 1
  1. 1.Allergan, Inc.IrvineUSA

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