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MIXNO: A Computer Program for Mixed-Effects Nominal Logistic Regression
Author(s) -
Donald Hedeker
Publication year - 1999
Publication title -
journal of statistical software
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 7.636
H-Index - 145
ISSN - 1548-7660
DOI - 10.18637/jss.v004.i05
Subject(s) - cholesky decomposition , statistics , marginal model , random effects model , mixed model , restricted maximum likelihood , logistic regression , generalized linear mixed model , marginal likelihood , covariance matrix , variance (accounting) , mathematics , econometrics , covariance , computer science , analysis of covariance , maximum likelihood , regression analysis , medicine , eigenvalues and eigenvectors , physics , meta analysis , accounting , quantum mechanics , business
MIXNO provides maximum marginal likelihood estimates for mixed-effects nominal logistic regression analysis. These models can be used for analysis of correlated nominal response data, for example, data arising from a clustered or longitudinal design. For such data, the mixed-effects model assumes that data within clusters or sub jects are dependent. The degree of dependency is jointly estimated with the usual model parameters, thus adjusting for dependence resulting from nesting of the data. MIXNO uses marginal maximum likelihood estimation, utilizing a Fisher-scoring solution. For the scoring solution, the Cholesky factor of the random-effects variance-covariance matrix is estimated along with the (fixed) effects of explanatory variables. Examples illustrating usage and features of MIXNO are provided.

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