gremlin: Mixed-Effects REML Incorporating Generalized Inverses

Fit linear mixed-effects models using restricted (or residual) maximum likelihood (REML) and with generalized inverse matrices to specify covariance structures for random effects. In particular, the package is suited to fit quantitative genetic mixed models, often referred to as 'animal models' (Kruuk. 2004 <doi:10.1098/rstb.2003.1437>). Implements the average information algorithm as the main tool to maximize the restricted likelihood, but with other algorithms available (Meyer. 1997. Genet Sel Evol 29:97; Meyer and Smith. 1998. Genet Sel Evol 28:23.).

Depends: Matrix
Imports: methods
Suggests: nadiv
Published: 2019-04-09
Author: Matthew Wolak ORCID iD [cre, aut]
Maintainer: Matthew Wolak <matthewwolak at>
License: GPL-3
NeedsCompilation: no
Materials: README NEWS
CRAN checks: gremlin results


Reference manual: gremlin.pdf
Package source: gremlin_0.1.0.1.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
OS X binaries: r-release: gremlin_0.1.0.1.tgz, r-oldrel: gremlin_0.1.0.1.tgz
Old sources: gremlin archive


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