metric-single-selection.md
In tune: Tidy Tuning Tools

selecting a metric

Code
  choose_metric(ames_grid_search, "rmse")
Output
  # A tibble: 1 x 3
    metric class          direction
    <chr>  <chr>          <chr>    
  1 rmse   numeric_metric minimize

Code
  choose_metric(ames_grid_search, NULL)
Condition
  Warning:
  No value of `metric` was given; "rmse" will be used.
Output
  # A tibble: 1 x 3
    metric class          direction
    <chr>  <chr>          <chr>    
  1 rmse   numeric_metric minimize

Code
  choose_metric(ames_grid_search, "potato")
Condition
  Error:
  ! "potato" was not in the metric set. Please choose from: "rmse" and "rsq".

Code
  choose_metric(ames_grid_search, c("rmse", "ccc"))
Condition
  Warning:
  2 metrics were given; "rmse" will be used.
Output
  # A tibble: 1 x 3
    metric class          direction
    <chr>  <chr>          <chr>    
  1 rmse   numeric_metric minimize