Hurdle Poisson Family

Hurdle model with truncated Poisson for positive counts.

Usage

ratiod_hurdle_pois(
  link_num = "log",
  link_denom = "log",
  link_hurdle = "logit",
  denom_family = "gamma"
)

Arguments

link_num

Link function for the count mean: "log".

link_denom

Link function for the denominator mean: "log" (default); a gamma denominator also takes "identity" or "inverse".

link_hurdle

Link function for the hurdle probability: "logit" (default), "probit" or "cloglog".

denom_family

Denominator distribution: "gamma" (default), "negbin" for a count denominator, or "fixed" for a known exposure.

Value

A ratiod_family object with hurdle structure

Examples

ratiod_hurdle_pois()
#> tulpaRatio family: hurdle_pois_gamma 
#> [Hurdle model]
#> Hurdle Poisson numerator, Gamma denominator 
#> 
#> Numerator:  poisson(log)
#> Hurdle:     bernoulli(logit)
#> Denominator: gamma (log)