Exact Probabilities for First-Order,Second-Order,and Third-Order Interactions in 2 × 2 × 2 × 2 Contingency Tables

Abstract

A FORTRAN program to calculate exact probabilities for first-, second-, and third-order interactions in 2×2×2×2 contingency tables with fixed marginals is presented. Computational speed and accuracy are assured with the use of an arbitrary constant for the initial table and recursively defined values for all subsequent tables.

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