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cff-version: 1.2.0
message: 'To cite package "detectseparation" in publications use:'
type: software
license: GPL-3.0-only
title: 'detectseparation: Detect and Check for Separation and Infinite Maximum Likelihood
  Estimates'
version: '0.3'
doi: 10.32614/CRAN.package.detectseparation
abstract: Provides pre-fit and post-fit methods for detecting separation and infinite
  maximum likelihood estimates in generalized linear models with categorical responses.
  The pre-fit methods apply on binomial-response generalized liner models such as
  logit, probit and cloglog regression, and can be directly supplied as fitting methods
  to the glm() function. They solve the linear programming problems for the detection
  of separation developed in Konis (2007, <https://ora.ox.ac.uk/objects/uuid:8f9ee0d0-d78e-4101-9ab4-f9cbceed2a2a>)
  using 'ROI' <https://cran.r-project.org/package=ROI> or 'lpSolveAPI' <https://cran.r-project.org/package=lpSolveAPI>.
  The post-fit methods apply to models with categorical responses, including binomial-response
  generalized linear models and multinomial-response models, such as baseline category
  logits and adjacent category logits models; for example, the models implemented
  in the 'brglm2' <https://cran.r-project.org/package=brglm2> package. The post-fit
  methods successively refit the model with increasing number of iteratively reweighted
  least squares iterations, and monitor the ratio of the estimated standard error
  for each parameter to what it has been in the first iteration. According to the
  results in Lesaffre & Albert (1989, <https://www.jstor.org/stable/2345845>), divergence
  of those ratios indicates data separation.
authors:
- family-names: Kosmidis
  given-names: Ioannis
  email: ioannis.kosmidis@warwick.ac.uk
  orcid: https://orcid.org/0000-0003-1556-0302
- family-names: Schumacher
  given-names: Dirk
  email: mail@dirk-schumacher.net
- family-names: Schwendinger
  given-names: Florian
  email: FlorianSchwendinger@gmx.at
repository: https://ikosmidis.r-universe.dev
repository-code: https://github.com/ikosmidis/detectseparation
commit: e11980d0fc5d7873cdd39481ff197dfee5783ea4
url: https://github.com/ikosmidis/detectseparation
contact:
- family-names: Kosmidis
  given-names: Ioannis
  email: ioannis.kosmidis@warwick.ac.uk
  orcid: https://orcid.org/0000-0003-1556-0302