Zero-Inflated Gamma-Poisson Log-Likelihood

Zero-Inflated Gamma-Poisson Log-Likelihood

Usage

log_lik_gamma_pois_zi(
  x,
  lambda = 1,
  theta = 0,
  prob = 0,
  tlower = 0,
  tupper = Inf
)

Arguments

x

A non-negative whole numeric vector of values.

lambda

A non-negative numeric vector of means.

theta

A non-negative numeric vector of the dispersion for the mixture models (student, gamma-Poisson and beta-binomial).

prob

A numeric vector of values between 0 and 1 of the probability of success.

tlower

A numeric vector of the lower truncation point.

tupper

A numeric vector of the upper truncation point.

Value

An numeric vector of the corresponding log-likelihoods.

See also

Other log_lik_dist: log_lik_bern(), log_lik_beta(), log_lik_beta_binom(), log_lik_binom(), log_lik_exp(), log_lik_gamma(), log_lik_gamma_pois(), log_lik_lnorm(), log_lik_neg_binom(), log_lik_norm(), log_lik_pois(), log_lik_pois_zi(), log_lik_skewlnorm(), log_lik_skewnorm(), log_lik_student(), log_lik_unif()

Examples

log_lik_gamma_pois_zi(c(1, 3, 4), 3, 1, prob = 0.5)
#> [1] -2.367124 -2.942488 -3.230170