fit_interfaces.md
In parsnip: A Common API to Modeling and Analysis Functions

misspecified formula argument

Code
  fit(linear_reg(), rec, mtcars)
Condition
  Error in `fit()`:
  ! The `formula` argument must be a formula, but it is a <recipe>.
  i To fit a model with a recipe preprocessor, please use a workflow (`?workflows::workflow()`).

Code
  fit(linear_reg(), "boop", mtcars)
Condition
  Error in `fit()`:
  ! The `formula` argument must be a formula, but it is a <character>.

No loaded engines

! parsnip could not locate an implementation for `cubist_rules` model specifications.
i The parsnip extension package rules implements support for this specification.
i Please install (if needed) and load to continue.

! parsnip could not locate an implementation for `poisson_reg` model specifications.
i The parsnip extension packages multilevelmod, poissonreg, and agua implement support for this specification.
i Please install (if needed) and load to continue.

! parsnip could not locate an implementation for `cubist_rules` model specifications using the `Cubist` engine.
i The parsnip extension package rules implements support for this specification.
i Please install (if needed) and load to continue.