Additional families compatible with tinyVAST()
.
delta_lognormal(link1, link2 = "log", type = c("standard", "poisson-link"))delta_gamma(link1, link2 = "log", type = c("standard", "poisson-link"))
A list with elements common to standard R family objects including family
,
link
, linkfun
, and linkinv
. Delta/hurdle model families also have
elements delta
(logical) and type
(standard vs. Poisson-link).
Link for first part of delta/hurdle model.
Link for second part of delta/hurdle model.
Delta/hurdle family type. "standard"
for a classic hurdle
model. "poisson-link"
for a Poisson-link delta model (Thorson 2018).
Link.
Poisson-link delta families:
Thorson, J.T. 2018. Three problems with the conventional delta-model for biomass sampling data, and a computationally efficient alternative. Canadian Journal of Fisheries and Aquatic Sciences, 75(9), 1369-1382. tools:::Rd_expr_doi("10.1139/cjfas-2017-0266")
Poisson-link delta families:
Thorson, J.T. 2018. Three problems with the conventional delta-model for biomass sampling data, and a computationally efficient alternative. Canadian Journal of Fisheries and Aquatic Sciences, 75(9), 1369-1382. tools:::Rd_expr_doi("10.1139/cjfas-2017-0266")