Monthly Archives: December 2008

Advanced Log-Linear Models

An excellent book, Models for Discrete Data, Daniel Zelterman, Oxford Science Publications, ISBN 0-19-852436-6, addresses theory and applications. In keeping with this bolg’s software focus, the point of mentioning his book is the author’s contributed SAS examples. You will find … Continue reading

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Common Principle Components

Covariance matrices are a natural multivariate structure as input for various methods such as Structural Equations Modeling(SEM), Factor Analysis, Principle Components and Cluster Analysis to name a few. Almost all can be shown to be special cases of SEMs. Recently … Continue reading

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Multivariate Nonparametric Methods

Univariate Nonparametric tests have been available for some time. Exact Inference for these tests are also an option from software such as STatXact. However multivariate versions of univariate nonparametric tests are harder to come by in most standard statistical software. … Continue reading

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