check for specified columns and corresponding column types

Usage

check_for_column(d, column_name, column, column_type = NULL)

Arguments

d: input dataframe
column_name: character string defining name of column to be checked
column: character vector to be checked (e.g., d$column_name)
column_type: (optional) desired column type to be checked for (e.g., 'character')

Value

if column_name exists in d and is of the correct column_type, nothing is returned. if column_name does not exist in d, an error is thrown. if column is not of the correct column_type, a warning is shown.

Examples

if (FALSE) {
d <- tibble::tribble(
  ~"id", ~"value",
  "123", 123,
  "456", 456
)
check_for_column(d, "id", d$id, "double")
check_for_column(d, "id2", d$id2, "double")
}