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Performs all the steps defined in a Recipe

Source: R/recipe-utils.R
prep.Rd

For a Recipe with at least one preprocessing or DA operation run the steps in a convenient order.

Usage

prep(
  rec,
  parallel = TRUE,
  workers = future::availableCores(constraints = "connections-16"),
  force = FALSE
)

Arguments

rec

A Recipe object.

parallel

if FALSE, no palatalization. if TRUE, parallel execution using future and furrr packages.

workers

Number of workers for palatalization.

force

Force the reexecution of all steps. This remove previous results.

Value

A PrepRecipe object.

Details

Recipes containing differential-abundance steps require an explicit add_model() before execution. Preprocessing-only recipes remain supported without a model. A missing model is reported before preprocessing or dependency checks, so the input data are not modified.

Examples

data(metaHIV_phy)
rec <- recipe(metaHIV_phy) |>
  add_model(~ RiskGroup2, targets = "RiskGroup2", tax_level = "Class") |>
  step_filter_by_prevalence(threshold = 0.03) |>
  step_wilcox()

da_results <- prep(rec, parallel = FALSE)