zinb.loglik.dispersion.gradient: Derivative of the log-likelihood of the zero-inflated...

Description Usage Arguments Value See Also

View source: R/zinb_fit.R

Description

Derivative of the log-likelihood of the zero-inflated negative binomial model with respect to the log of the inverse dispersion parameter

Usage

1
zinb.loglik.dispersion.gradient(zeta, Y, mu, logitPi)

Arguments

zeta

the log of the inverse dispersion parameters of the negative binomial

Y

a vector of counts

mu

a vector of mean parameters of the negative binomial

logitPi

a vector of the logit of the probability of the zero component

Value

the gradient of the inverse dispersion parameters.

See Also

zinb.loglik, zinb.loglik.dispersion.


zinbwave documentation built on Nov. 8, 2020, 8:11 p.m.