Description Usage Arguments Value See Also
Derivative of the log-likelihood of the zero-inflated negative binomial model with respect to the log of the inverse dispersion parameter
1 | zinb.loglik.dispersion.gradient(zeta, Y, mu, logitPi)
|
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 |
the gradient of the inverse dispersion parameters.
zinb.loglik
, zinb.loglik.dispersion
.
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