| bizicount-package {bizicount} | R Documentation |
The package provides regression functions for copula-based
bivariate count models, with and without zero-inflation, as well as
regression functions for univariate zero-inflated count models. Generic
methods from the texreg-package and
DHARMa are extended to support this
package, namely for the purposes of producing professional tables and
carrying out post-estimation diagnostics. A generic for He et al. (2019)'s
test for zero-modification is provided, with methods for both bizicount
and glm-class objects.
bizicount – The primary function of this package.
Carries out copula-based bivariate count regression via maximum likelihood
using numerical optimization. Supports both zero-inflated and non-inflated
distributions.
extract.bizicount – Method for the texreg package's
extract generic. Creates a list of texreg objects, one
for each margin, for use with that package's other functions.
make_DHARMa – Creates a list of DHARMa objects, one for
each margin, for bizicount models. A wrapper around
createDHARMa.
simulate.bizicount – Method that simulates observations
using the fitted model's parameters, primarily for use with DHARMa.
zi_test – Method for testing for marginal zero-modification
using the esimated parameters from the model. This test is preferable to the
Vuong, Wald, Score, and LR tests. See He et al. (2019).
zic.reg – Univariate zero-inflated count regression
models via maximum likelihood.
extract.zicreg – Method for the texreg package's
extract generic. Creates a texreg object that
interfaces with that package's methods.
simulate.zicreg – Method for simulating from the fitted
model. Results are generally used for creating DHARMa objects.
#'
zi_test – Method for testing for univariate zero-modification
using the esimated parameters from the model. This test is preferable to the
Vuong, Wald, Score, and LR tests. See He et al. (2019).
John Niehaus