datacheckr (version 0.2.0.9002)

check_key: Check Key

Description

Checks that columns in a data frame represent a unique key.

Usage

check_key(data, key = NULL, data_name = substitute(data))

Arguments

data

The data frame to check.

key

A character vector of the column names representing the key.

data_name

A string of the name of data.

Value

Throws an informative error or returns an invisible copy of the data.

Details

By default (key = NULL) all the columns are checked.