Mark arguments for tuning

tune() is an argument placeholder to be used with the recipes, parsnip, and tune packages. It marks recipes step and parsnip model arguments for tuning.

Usage

tune(id = "")

Arguments

id

A single character value that can be used to differentiate parameters that are used in multiple places but have the same name, or if the user wants to add a note to the specified parameter.

Value

A call object that echos the user's input.

See also

tune::tune_grid(), tune::tune_bayes()

Examples

tune()
#> tune()
tune("your name here")
#> tune("your name here")

# In practice, `tune()` is used alongside recipes or parsnip to mark
# specific arguments for tuning
library(recipes)

recipe(mpg ~ ., data = mtcars) %>%
  step_normalize(all_numeric_predictors()) %>%
  step_pca(all_numeric_predictors, num_comp = tune())
#> 
#> ── Recipe ────────────────────────────────────────────────────────────────
#> 
#> ── Inputs 
#> Number of variables by role
#> outcome:    1
#> predictor: 10
#> 
#> ── Operations 
#> • Centering and scaling for: all_numeric_predictors()
#> • PCA extraction with: all_numeric_predictors