Bivariate Zero-Inflated Count Models Using Copulas.

bizicount

The bizicount R-package is primarily for estimating copula-based bivariate count regression models, with and without zero-inflation or overdispersion. However, its full suite of functions can:

• Estimate copula-based bivariate zero-inflated count regression models, as well as non-inflated models.

• Estimate univariate zero-inflated count models (zic.reg)

• Carry out post estimation diagnostics using the DHARMa package (simulate.bizicount, simulate.zicreg, make_DHARMa)

• Produce professional tables in latex, word, or plain-text using the texreg package (extract.bizicount, extract.zicreg).

• Test for zero modification using zi_test()(He et al. 2019).

• Evaluate univariate zero-inflated count distribution CDFs, PDFs, and quantile functions, and generate random zero-inflated counts (pzip or pzinb, dzip or dzinb, qzip or qzinb, and rzip or rzinb)

Installation

To install from CRAN: install.packages("bizicount")

To install from GitHub: devtools::install_github("jmniehaus/bizicount", dependencies = TRUE)