zipath and predprob were derived from zeroinfl (Achim Zeileis) and predprob.R (Simon Jackman), respectively in package pscl Author: Simon Jackman, with contributions from Alex Tahk, Achim Zeileis, Christina Maimone and Jim Fearon License GPL-2 glmregNB derived from glm.nb in package MASS Authors@R: c(person("Brian", "Ripley", role = c("aut", "cre", "cph"), email = "ripley@stats.ox.ac.uk"), person("Kurt", "Hornik", role = "trl", comment = "partial port ca 1998"), person("Albrecht", "Gebhardt", role = "trl", comment = "partial port ca 1998"), person("David", "Firth", role = "ctb")) License: GPL-2 | GPL-3 convexMin modified from ncvreg version: 3.1-0 Author: Patrick Breheny License GPL-2 several functions inspired by package sandwich version 2.3.0 Author: Thomas Lumley [aut], Achim Zeileis [aut, cre] Maintainer: Achim Zeileis License: GPL-2 nonzeroCoef and plotCoef are from glmnet_3.0-0 which doesn't export nonzeronCoef and plotCoef function Authors@R: c(person("Jerome", "Friedman", role=c("aut")), person("Trevor", "Hastie", role=c("aut", "cre"), email="hastie@stanford.edu") person("Rob", "Tibshirani", role=c("aut")), person("Balasubramanian", "Narasimhan", role=c("aut")), person("Noah", "Simon", role=c("aut")), person("Junyang", "Qian", role=c("ctb"))) License GPL-2