Type: Package Package: SimplexRegression Title: Simplex Regression Models with Parametric or Fixed Mean Link Functions Version: 0.1.3 Authors@R: c( person("Maria Eduarda", "da Cruz Justino", , "eueduardacruz@gmail.com", role = c("aut", "cre"), comment = c(ORCID = "0000-0001-9501-2642")), person("Francisco", "Cribari-Neto", , "francisco.cribari@ufpe.br", role = c("ctb", "ths"), comment = c(ORCID = "0000-0002-5909-6698", "Theoretical foundations")) ) Author: Maria Eduarda da Cruz Justino [aut, cre] (ORCID: ), Francisco Cribari-Neto [ctb, ths] (ORCID: , Theoretical foundations) Maintainer: Maria Eduarda da Cruz Justino Description: Fits and analyzes simplex regression models with either fixed or parametric mean link functions. Implements the simplex probability density function, cumulative distribution function, quantile function, random number generation, and variance evaluation. Offers several fixed and parametric link functions for the mean submodel, tools for residual analysis and diagnostic plotting, hypothesis testing procedures, and influence measures such as Cook's distance and leverage (hat values). Includes the Scout Score (SS) criterion for model selection, enabling comprehensive inference and diagnostic analysis within the simplex regression framework. For more details see Barndorff-Nielsen and Jorgensen (1991) and Justino and Cribari-Neto (2026) . License: MIT + file LICENSE URL: https://github.com/dudajustino/SimplexRegression BugReports: https://github.com/dudajustino/SimplexRegression/issues Depends: R (>= 3.5) Imports: Formula, lmtest, Matrix, pracma, sandwich Suggests: knitr, moments, rmarkdown, spelling, testthat (>= 3.0.0), tseries VignetteBuilder: knitr Config/roxygen2/version: 8.0.0 Config/testthat/edition: 3 Encoding: UTF-8 Language: en-US LazyData: true LazyDataCompression: xz RoxygenNote: 7.3.3 NeedsCompilation: no Packaged: 2026-06-30 16:48:36 UTC; root Repository: https://cran.r-universe.dev Date/Publication: 2026-06-30 12:30:12 UTC RemoteUrl: https://github.com/cran/SimplexRegression RemoteRef: HEAD RemoteSha: 1ce44e435e6ce7b866f3985b8cb7d83c80888eaf