Implementation of cumulative link (mixed) models also known as ordered regression models, proportional odds models, proportional hazards models for grouped survival times and ordered logit/probit/... models. Estimation is via maximum likelihood and mixed models are fitted with the Laplace approximation and adaptive Gauss-Hermite quadrature. Multiple random effect terms are allowed and they may be nested, crossed or partially nested/crossed. Restrictions of symmetry and equidistance can be imposed on the thresholds (cut-points/intercepts). Standard model methods are available (summary, anova, drop-methods, step, confint, predict etc.) in addition to profile methods and slice methods for visualizing the likelihood function and checking convergence.
Package details |
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Author | Rune Haubo Bojesen Christensen [aut, cre] |
Maintainer | Rune Haubo Bojesen Christensen <rune.haubo@gmail.com> |
License | GPL (>= 2) |
Version | 2023.12-4 |
URL | https://github.com/runehaubo/ordinal |
Package repository | View on CRAN |
Installation |
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