bizicount - Bivariate Zero-Inflated Count Models Using Copulas
Maximum likelihood estimation of copula-based
zero-inflated (and non-inflated) Poisson and negative binomial
count models, based on the article <doi:10.18637/jss.v109.i01>.
Supports Frank and Gaussian copulas. Allows for mixed margins
(e.g., one margin Poisson, the other zero-inflated negative
binomial), and several marginal link functions. Built-in
methods for publication-quality tables using 'texreg',
post-estimation diagnostics using 'DHARMa', and testing for
marginal zero-modification via <doi:10.1177/0962280217749991>.
For information on copula regression for count data, see Genest
and Nešlehová (2007) <doi:10.1017/S0515036100014963> as well as
Nikoloulopoulos (2013) <doi:10.1007/978-3-642-35407-6_11>. For
information on zero-inflated count regression generally, see
Lambert (1992)
<https://www.jstor.org/stable/1269547?origin=crossref>. The
author acknowledges support by NSF DMS-1925119 and DMS-212324.