Package: ordinal Type: Package Title: Regression Models for Ordinal Data Version: 2025.12-29 Date: 2025-12-29 Authors@R: person(given="Rune Haubo Bojesen", family="Christensen", email="rune.haubo@gmail.com", role=c("aut", "cre")) LazyData: true ByteCompile: yes Depends: R (>= 2.13.0), stats, methods Imports: ucminf, MASS, Matrix, numDeriv, nlme Suggests: lme4, nnet, xtable, testthat (>= 0.8), tools Description: 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. License: GPL (>= 2) NeedsCompilation: yes URL: https://github.com/runehaubo/ordinal BugReports: https://github.com/runehaubo/ordinal/issues Repository: https://runehaubo.r-universe.dev Date/Publication: 2026-01-08 21:30:26 UTC RemoteUrl: https://github.com/runehaubo/ordinal RemoteRef: HEAD RemoteSha: c41c4026e0be598f890f52cf32badc550c82ba84 Packaged: 2026-06-11 08:17:25 UTC; root Author: Rune Haubo Bojesen Christensen [aut, cre] Maintainer: Rune Haubo Bojesen Christensen