Package: twopartm
Type: Package
Title: Two-Part Model with Marginal Effects
Version: 0.1.0
Authors@R: c(person("Yajie", "Duan", email = "yajieritaduan@gmail.com", role = c("aut","cre")),
  person("Birol", "Emir", email = "birol.emir@pfizer.com", role = "aut"),
  person("Griffith", "Bell", email = "griffith.bell@pfizer.com", role = "aut"),
  person("Javier", "Cabrera", email = "cabrera@stat.rutgers.edu", role = "aut"),
  person("Pfizer Inc.", role = c("cph", "fnd")))
Maintainer: Yajie Duan <yajieritaduan@gmail.com>
Description: Fit two-part regression models for zero-inflated data. The
        models and their components are represented using S4 classes
        and methods. Average Marginal effects and predictive margins
        with standard errors and confidence intervals can be calculated
        from two-part model objects. Belotti, F., Deb, P., Manning, W.
        G., & Norton, E. C. (2015) <doi:10.1177/1536867X1501500102>.
License: GPL (>= 2)
Depends: R (>= 2.10)
Imports: methods, graphics, stats, data.table, MASS
Encoding: UTF-8
LazyData: true
NeedsCompilation: no
RoxygenNote: 7.2.1
Packaged: 2026-07-12 08:40:53 UTC; root
Author: Yajie Duan [aut, cre], Birol Emir [aut], Griffith Bell [aut],
        Javier Cabrera [aut], Pfizer Inc. [cph, fnd]
Repository: https://yajie1020.r-universe.dev
Date/Publication: 2022-10-14 07:50:02 UTC
RemoteUrl: https://github.com/cran/twopartm
RemoteRef: HEAD
RemoteSha: f94c566708c58cea095d7b9680d11e8df6325936