Find measure columns in a data frame

Finds all columns in a data frame that contain measurement data (i.e., are of class measure_list).

Usage

find_measure_cols(data)

Arguments

data

A data frame.

Value

Character vector of column names containing measure data. Returns empty character vector if no measure columns found.

Examples

library(recipes)

rec <- recipe(water + fat + protein ~ ., data = meats_long) |>
  update_role(id, new_role = "id") |>
  step_measure_input_long(transmittance, location = vars(channel)) |>
  prep()

result <- bake(rec, new_data = NULL)
find_measure_cols(result)  # ".measures"
#> [1] ".measures"