Provides the information required to apply a sparse SGLMM to conditionally negative binomial outcomes.
negbinomial(theta = stop("'theta' must be specified."), link = "log")the dispersion parameter (must be positive).
the link function, as a character string, name, or one-element character vector, specifying one of log, sqrt, or identity, or an object of class “link-glm”
An object of class “family”, a list of functions and expressions needed to fit a negative binomial GLM.