Notes and Technical Information Algorithms (incomplete)
The fitting of models (marginal tables) to observed frequency tables is accomplished via iterative proportional fitting (see Deming & Stephan, 1940; Brown, 1959; Ireland & Kullback, 1968; Haberman, 1972, 1974).
The computations of the Pearson Chi-square and maximum likelihood ratio Chi-square statistics are described in detail by Bishop, Fienberg, and Holland (1975) and Fienberg (1978). The logic of the automatic selection algorithm is described in Goodman (1971).
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