step_varying — step_varying • hydrorecipes

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()