The following data are taken from Lawless (1982, p.193) and represent the number of days it took rats painted with a carcinogen to develop carcinoma. The last 2 observations are censored data from a ...

%This function gets called every time the likelihood is evaluated. %Try to keep this funciton as efficient as possible because it gets %called thousands of times.

Perplexity (PPL) measures exponentiated average negative log-likelihood of a sequence, which is a common measurement for evaluating language models. Based on https ...

Mixed model analyses via restricted maximum likelihood, fitting the so-called animal model, have become standard methodology for the estimation of genetic variances. Models involving multiple genetic ...

This example calculates confidence intervals based on the profile likelihood for the parameters estimated in the previous example. The following introduction on profile-likelihood methods is based on ...