H08 Define a recipe

Use your current course session. Preparation and course runner · R script ↓

H08 Define a recipe

Goal: Store preparation as a reusable object.

Prerequisites: H07.

A recipe is an ordered sequence of transformations. Constructing it does not execute it.

training_step(
  "H08",
  {
    rounding_recipe <- dr_recipe() |>
      dr_step_mutate(premium = round(premium, 2))
    print(rounding_recipe)
    precise_policies <- policies
    precise_policies$premium[1] <- 100.126
  },
  needs = c("H07")
)

Expected result: A recipe containing a mutate step.

Task: What should 100.126 become?