Exact (Restricted) Likelihood Ratio tests for mixed and additive models.
Rapid, simulation-based exact (restricted) likelihood ratio tests for testing the presence of variance components/nonparametric terms with a convenient interface for models fit with nlme::lme(),lme4::lmer(), mgcv::gamm() and SemiPar:spm()

Rapid, simulation-based exact (restricted) likelihood ratio tests for testing the presence of variance components/nonparametric terms for models fit with nlme::lme(),lme4::lmer(), mgcv::gamm() and SemiPar:spm()

Exact (Restricted) Likelihood Ratio tests for mixed and additive
models.
Rapid, simulation-based exact (restricted) likelihood
ratio tests for testing the presence of variance
components/nonparametric terms for models fit with
nlme::lme(),lme4::lmer(), mgcv::gamm() and SemiPar:spm()

nlme, lme4 (>= 0.999375-20), SemiPar, mgcv, amer

Rapid, simulation-based exact (restricted) likelihood ratio tests
for testing the presence of variance components/nonparametric terms for
models fit with nlme::lme(),lme4::lmer(), mgcv::gamm() and SemiPar:spm()
'LRTSim.R' 'RLRTSim.R' 'RLRsim-package.R' 'exactLRT.R'
'exactRLRT.R' 'extract.lmeDesign.R' 'extract.lmerModDesign.R'

Rapid, simulation-based exact (restricted) likelihood ratio tests
for testing the presence of variance components/nonparametric terms for
models fit with nlme::lme(),lme4::lmer(), gamm4::gamm4(), mgcv::gamm() and
SemiPar::spm().

Exact (Restricted) Likelihood Ratio Tests for Mixed and Additive
Models
c(person("Fabian", "Scheipl", role = c("aut", "cre"), email = "fabian.scheipl@stat.uni-muenchen.de"), person("Ben", "Bolker", role = "aut"))
Fabian Scheipl [aut, cre],
Ben Bolker [aut]

Rapid, simulation-based exact (restricted) likelihood ratio tests
for testing the presence of variance components/nonparametric terms for
models fit with nlme::lme(),lme4::lmer(), lmeTest::lmer(), gamm4::gamm4(),
mgcv::gamm() and SemiPar::spm().

c(person("Fabian", "Scheipl", role = c("aut", "cre"),
email = "fabian.scheipl@stat.uni-muenchen.de",
comment=c(ORCID="0000-0001-8172-3603")),
person("Ben", "Bolker", role = "ctb",
comment=c(ORCID="0000-0002-2127-0443")))