step_varying: step_varying

View source: R/api_recipes.R

step_varyingR Documentation

step_varying

Description

remove columns that only contain a single value.

Usage

step_varying(.rec, terms, role = "predictor", ...)

Arguments

.rec

the R6 recipe object.

terms

the unquoted names of the variables to use or a selector function. terms replaces the '...' of the recipes package but requires variables to be included within 'c()'. For example to include variables x and y you would write 'c(x,y)' in the hydrorecipes package.

role

character - the name of the role

...

additional arguments

Value

an updated recipe

Examples


formula <- as.formula(y~x+z)
rows <- 1000
dat <- data.frame(x = rep(1, rows),
                  y = 1:rows,
                  z = rnorm(rows))

frec = recipe(formula = formula, data = dat) |>
  step_varying(c(x, y, z)) |>
  plate("tbl")

jkennel/hydrorecipes documentation built on Dec. 24, 2024, 5:38 p.m.