Set formula for y, null model or alternative model

This function store the formula in the environment, and drops all attributes. It is not recommended to modify the formula of y after the instance has been built, which may create confusion.

Arguments

...

Formulas. Formulas with names.

Value

Return the object itself.

Examples

# Instantiate
x <- rand_uniform()
e <- rand_normal()
test <- vi_model(prm = list(x = x, e = e),
                 prm_type = list(x = "r", e = "r"),
                 formula = y ~ 1 + x + x^2 + e,
                 null_formula = y ~ x,
                 alt_formula = y ~ x + I(x^2))

test$set_formula(alt_formula = y ~ x + I(x^3))
test$alt_formula
#> y ~ x + I(x^3)