has_theta: Are additional parameters available for a GAM?

In gratia: Graceful 'ggplot'-Based Graphics and Other Functions for GAMs Fitted Using 'mgcv'

Are additional parameters available for a GAM?

Description

Are additional parameters available for a GAM?

Usage

has_theta(object)

Arguments

object

an R object, either a family() object or an object whose class has a family() method.

Value

A logical; TRUE if additional parameters available, FALSE otherwise.

Examples

load_mgcv()
df <- data_sim("eg1", dist = "poisson", seed = 42, scale = 1/5)
m <- gam(y ~ s(x0) + s(x1) + s(x2) + s(x3), data = df, method = "REML",
         family = nb())
has_theta(m)
p <- theta(m)

gratia documentation built on Feb. 16, 2023, 10:40 p.m.