Package: LogisticCopula Type: Package Title: A Copula Based Extension of Logistic Regression Version: 0.1.0 Authors@R: c( person("Simon Boge", "Brant",, "simbrant91@gmail.com", role = c("aut", "cre")), person("Ingrid", "Hobæk Haff", role = "aut") ) Maintainer: Simon Boge Brant Description: An implementation of a method of extending a logistic regression model beyond linear effects of the co-variates. The extension in is constructed by first equating the logistic regression model to a naive Bayes model where all the margins are specified to follow natural exponential distributions conditional on Y, that is, a model for Y given X that is specified through the distribution of X given Y, where the columns of X are assumed to be mutually independent conditional on Y. Subsequently, the model is expanded by adding vine - copulas to relax the assumption of mutual independence, where pair-copulas are added in a stage-wise, forward selection manner. Some heuristics are employed during the process of selecting edges, as well as the families of pair-copula models. After each component is added, the parameters are updated by a (smaller) number of gradient steps to maximise the likelihood. When the algorithm has stopped adding edges, based the criterion that a new edge should improve the likelihood more than k times the number new parameters, the parameters are updated with a larger number of gradient steps, or until convergence. License: MIT + file LICENSE Imports: VineCopula (>= 2.5.0), rvinecopulib (>= 0.6.3.1.1), igraph (>= 2.0.3), numDeriv (>= 8-1.1), stringr (>= 1.5.1) Depends: R (>= 3.5.0), brglm2 (>= 0.9) Encoding: UTF-8 LazyData: true RoxygenNote: 7.3.1 Author: Simon Boge Brant [aut, cre], Ingrid Hobæk Haff [aut] NeedsCompilation: no Packaged: 2026-07-15 06:46:17 UTC; root Repository: https://cran.r-universe.dev Date/Publication: 2024-06-29 02:41:32 UTC RemoteUrl: https://github.com/cran/LogisticCopula RemoteRef: HEAD RemoteSha: 9814c5738b932a0d1029f35042731bdb869ca186