Package: HeckmanEM
Type: Package
Title: Fit Normal, Student-t or Contaminated Normal Heckman Selection
        Models
Version: 0.2-2
Authors@R: c(person(given = "Marcos",family = "Prates", role=c("aut","cre","trl"),
       	            email="marcosop@est.ufmg.br", comment = c(ORCID = "0000-0001-8077-4898")),
             person(given = "Victor",family="Lachos", role="aut", comment = c(ORCID = "0000-0002-7239-2459")),
             person(given = "Dipak",family="Dey", role="aut"),
             person(given = "Marcos",family= "Oliveira", role=c("aut","ctb")),
             person(given = "Christian",family = "Galarza", role="ctb"),
             person(given = "Katherine",family = "Loor", role="ctb"),
             person(given = "Alejandro",family = "Ordonez", role="ctb"))             
Description: It performs maximum likelihood estimation for the Heckman
        selection model (Normal, Student-t or Contaminated normal)
        using an EM-algorithm <doi:10.1016/j.jmva.2021.104737>. It also
        performs influence diagnostic through global and local
        influence for four possible perturbation schema.
Imports: mvtnorm (>= 1.1-0), sampleSelection (>= 1.2-6), MomTrunc (>=
        5.79), PerformanceAnalytics (>= 2.0.4), ggplot2, methods
License: GPL-2
Encoding: UTF-8
RoxygenNote: 7.3.2
NeedsCompilation: no
Author: Marcos Prates [aut, cre, trl] (ORCID:
        <https://orcid.org/0000-0001-8077-4898>), Victor Lachos [aut]
        (ORCID: <https://orcid.org/0000-0002-7239-2459>), Dipak Dey
        [aut], Marcos Oliveira [aut, ctb], Christian Galarza [ctb],
        Katherine Loor [ctb], Alejandro Ordonez [ctb]
Maintainer: Marcos Prates <marcosop@est.ufmg.br>
Packaged: 2026-09-25 07:55:27 UTC; root
Repository: https://cran.r-universe.dev
Date/Publication: 2025-06-02 13:02:41 UTC
RemoteUrl: https://github.com/cran/HeckmanEM
RemoteRef: HEAD
RemoteSha: 75854fa9bf431f2ac1c21163889f54256080f46b