Generating multivariate categorical variates using the iterative proportional fitting algorithm

Research output: Contribution to journalArticle

Abstract

Two recent papers have suggested methods for generating correlated binary data with fixed marginal distributions and specified degrees of pairwise association. Emrich and Piedmonte suggested a method based on the existence of a multivariate normal distribution, while Lee suggested methods based on linear programming and Archimedian copulas. In this paper, a simpler method is described using the iterative proportional fitting algorithm for generating an n-dimensional distribution of correlated categorical data with specified margins of dimension 1, 2, …, k < n. An example of generating a distribution for a generalized estimating equations (GEE) model is discussed.

Original languageEnglish (US)
Pages (from-to)134-138
Number of pages5
JournalAmerican Statistician
Volume49
Issue number2
DOIs
StatePublished - May 1995

Keywords

  • Correlated outcomes
  • Generalized estimating equations
  • Loglinear models
  • Random number generation

ASJC Scopus subject areas

  • Statistics and Probability
  • Mathematics(all)
  • Statistics, Probability and Uncertainty

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