Add a formula part after the existing ones

Add a formula part after the existing ones

Usage

add_part(spec, part)

Arguments

spec

A model_spec object.

part

A model_spec, a formula or a string; see set_parts.

Value

A new model_spec with part added last.

See also

set_parts

Examples

model_spec(x1) |> add_part(model_spec(firm)) |> add_part(endo ~ inst)
#> model_spec: ~ x1 | firm | endo ~ inst