tests/testthat/_snaps/BoxCox.md

In topepo/recipes: Preprocessing and Feature Engineering Steps for Modeling

simple Box Cox

Code
  rec_trained <- prep(rec, training = ex_dat, verbose = FALSE)
Condition
  Warning:
  Non-positive values in selected variable.
  Warning:
  Fewer than `num_unique` values in selected variable.
  Warning:
  No Box-Cox transformation could be estimated for: `x2` and `x3`.

warnings

Code
  recipe(~., data = exp_dat) %>% step_BoxCox(x1) %>% prep()
Condition
  Warning:
  Non-positive values in selected variable.
  Warning:
  No Box-Cox transformation could be estimated for: `x1`.
Message

  -- Recipe ----------------------------------------------------------------------

  -- Inputs 
  Number of variables by role
  predictor: 4

  -- Training information 
  Training data contained 20 data points and no incomplete rows.

  -- Operations 
  * Box-Cox transformation on: <none> | Trained

empty printing

Code
  rec
Message

  -- Recipe ----------------------------------------------------------------------

  -- Inputs 
  Number of variables by role
  outcome:    1
  predictor: 10

  -- Operations 
  * Box-Cox transformation on: <none>

Code
  rec
Message

  -- Recipe ----------------------------------------------------------------------

  -- Inputs 
  Number of variables by role
  outcome:    1
  predictor: 10

  -- Training information 
  Training data contained 32 data points and no incomplete rows.

  -- Operations 
  * Box-Cox transformation on: <none> | Trained

printing

Code
  print(rec)
Message

  -- Recipe ----------------------------------------------------------------------

  -- Inputs 
  Number of variables by role
  predictor: 4

  -- Operations 
  * Box-Cox transformation on: x1, x2, x3, x4

Code
  prep(rec)
Condition
  Warning:
  Non-positive values in selected variable.
  Warning:
  Fewer than `num_unique` values in selected variable.
  Warning:
  No Box-Cox transformation could be estimated for: `x2` and `x3`.
Message

  -- Recipe ----------------------------------------------------------------------

  -- Inputs 
  Number of variables by role
  predictor: 4

  -- Training information 
  Training data contained 20 data points and no incomplete rows.

  -- Operations 
  * Box-Cox transformation on: x1 and x4 | Trained

topepo/recipes documentation built on April 10, 2024, 10:30 p.m.