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Utilizes the 'lme4' package and the optim() function from 'stats' to estimate (generalized) linear mixed models (GLMM) with factor structures using a profile likelihood approach, as outlined in Jeon and RabeHesketh (2012) <doi:10.3102/1076998611417628>. Factor analysis and item response models can be extended to allow for an arbitrary number of nested and crossed random effects, making it useful for multilevel and crossclassified models.
Package details 


Author  Minjeong Jeon [aut], Nicholas Rockwood [aut, cre] 
Maintainer  Nicholas Rockwood <[email protected]> 
License  GPL (>= 2) 
Version  0.1.3 
Package repository  View on CRAN 
Installation 
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