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# CITATION.cff file created with {cffr} R package
# See also: https://docs.ropensci.org/cffr/
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cff-version: 1.2.0
message: 'To cite package "divoRce" in publications use:'
type: software
license:
- GPL-2.0-only
- GPL-3.0-only
title: 'divoRce: Diagnosing Separation Phenomena in Latent Polyhedral Categorical
  Response Models'
version: 1.0-2
abstract: Utilities for checking and diagnosing separation phenomena (complete separation,
  quasi-complete separation, overlap) for latent polyhedral categorical response models
  including binary, nominal and ordinal data models with link construction as baseline-category,
  adjacent-category, cumulative, sequential (continuation-ratio), ordered stereotype
  and arbitrary link error distribution (including logit, probit, cauchit, cloglog,
  loglog, log amongst others) based on structure vectors as described in Sablica,
  Hornik, Rusch (2026) <https://doi.org/10.48550/arXiv.2610.08100> and Rusch, Sablica,
  Hornik (2026) <https://doi.org/10.48550/arXiv.2610.09951>. The package functionality
  includes a check for separation and a check for overlap with a linear program, a
  quick check for overlap, a sequential and a parallel check for overlap based on
  subsamples, detailed separation diagnostics such as identification of columns in
  the design matrix/structure vector matrix that lead to separation, identification
  of design matrix/structure vector matrix rows that lead to separation, the dimension
  of the recession cone and the structure vectors that are linearities. Calculations
  can be done with package 'rcdd' to employ arbitrary precision and various other
  linear program solvers can also be used via package 'ROI'. Implemented checks can
  be done before model fitting based on outcome and design matrix or structure vector
  matrix or via formula (pre-fit), or after model fitting for objects of class 'glm',
  'multinom', 'polr', 'osm', 'clm', 'bracl', 'brmultinom'. Wrappers for other classes
  can be easily constructed by third parties via pre-fit functions.
authors:
- family-names: Rusch
  given-names: Thomas
  email: thomas.rusch@wu.ac.at
  orcid: https://orcid.org/0000-0002-7773-2096
- family-names: Sablica
  given-names: Lukas
  orcid: https://orcid.org/0000-0001-9166-4563
- family-names: Hornik
  given-names: Kurt
  orcid: https://orcid.org/0000-0003-4198-9911
repository: https://cran.r-universe.dev
commit: 6423ad28f22ac1e3d045a5498cccd9f9fe3ab2b8
date-released: '2026-10-18'
contact:
- family-names: Rusch
  given-names: Thomas
  email: thomas.rusch@wu.ac.at
  orcid: https://orcid.org/0000-0002-7773-2096