Is a model term an offset?

Given a character vector of model terms, checks to see which, if any, is the model offset.

Usage

is_offset(terms)

Arguments

terms

character vector of model terms.

Value

A logical vector of the same length as terms.

Author

Gavin L. Simpson

Examples

load_mgcv()
df <- data_sim("eg1", n = 400, dist = "normal")
m <- gam(y ~ s(x0) + s(x1) + offset(x0), data = df, method = "REML")
nm <- names(model.frame(m))
nm
#> [1] "y"          "offset(x0)" "x0"         "x1"        
is_offset(nm)
#> [1] FALSE  TRUE FALSE FALSE