BIC.ZIPLNfit: Bayesian Information Criterion for a fitted ZIPLN model

In PLNmodels: Poisson Lognormal Models

Bayesian Information Criterion for a fitted ZIPLN model

Description

Computes the variational BIC as loglik - 0.5 * log(n) * nb_param (larger is better). This follows the maximization convention used throughout PLNmodels.

Usage

## S3 method for class 'ZIPLNfit'
BIC(object, ...)

Arguments

object	an R6 object with class ZIPLNfit
...	additional parameters for S3 compatibility. Not used

Value

A scalar: the variational BIC (larger is better).

Examples

data(trichoptera)
trichoptera <- prepare_data(trichoptera$Abundance, trichoptera$Covariate)
model <- ZIPLN(Abundance ~ 1, data = trichoptera)
BIC(model)

PLNmodels documentation built on July 27, 2026, 5:09 p.m.