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().
*** removed bug in LRTSim that led to non-sensical results.
m, but not for
mA. (Thanks, Christoph Huber-Huber!)
*** now using Rcpp