Fixed and Random Zeros

  • Ronald Christensen
Part of the Springer Texts in Statistics book series (STS)


Not infrequently, one encounters a table in which a number of the cell counts are O’s. These cells sometimes cause problems when fitting log-linear models. Recall that, in our discussion of logistic regression in Section VII.3, we had a 2 × 200 table that was riddled with 0 counts. Except for the fact that some asymptotic results did not hold, the zeros caused no problems. Cells with zero counts merely have the potential to cause problems.


Saturated Model Zero Count Marginal Total Full Table Iterative Proportional Fitting 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Ronald Christensen
    • 1
  1. 1.Department of Mathematics and StatisticsUniversity of New MexicoAlbuquerqueUSA

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