step_shuffle {recipes} | R Documentation |
step_shuffle
creates a specification of a recipe
step that will randomly change the order of rows for selected
variables.
step_shuffle(recipe, ..., role = NA, trained = FALSE, columns = NULL) ## S3 method for class 'step_shuffle' tidy(x, ...)
recipe |
A recipe object. The step will be added to the sequence of operations for this recipe. |
... |
One or more selector functions to choose which
variables will permuted. See |
role |
Not used by this step since no new variables are created. |
trained |
A logical to indicate if the quantities for preprocessing have been estimated. |
columns |
A character string that contains the names of
columns that should be shuffled. These values are not determined
until |
x |
A |
An updated version of recipe
with the new step
added to the sequence of existing steps (if any). For the
tidy
method, a tibble with columns terms
which
is the columns that will be affected.
integers <- data.frame(A = 1:12, B = 13:24, C = 25:36) library(dplyr) rec <- recipe(~ A + B + C, data = integers) %>% step_shuffle(A, B) rand_set <- prep(rec, training = integers) set.seed(5377) bake(rand_set, integers) tidy(rec, number = 1) tidy(rand_set, number = 1)