# 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`, `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` Output Recipe Inputs: role #variables predictor 4 Training data contained 20 data points and no missing data. Operations: Box-Cox transformation on <none> [trained] # printing Code print(rec) Output Recipe Inputs: role #variables 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`, `x3` Output Recipe Inputs: role #variables predictor 4 Training data contained 20 data points and no missing data. Operations: Box-Cox transformation on x1, x4 [trained] # empty printing Code rec Output Recipe Inputs: role #variables outcome 1 predictor 10 Operations: Box-Cox transformation on <none> --- Code rec Output Recipe Inputs: role #variables outcome 1 predictor 10 Training data contained 32 data points and no missing data. Operations: Box-Cox transformation on <none> [trained]
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