checkColsFormUniqueKeys: Check that a set of columns form unique keys.

In wrapr: Wrap R Tools for Debugging and Parametric Programming

Check that a set of columns form unique keys.

Description

For local data.frame only.

Usage

checkColsFormUniqueKeys(data, keyColNames)

Arguments

data	data.frame to work with.
keyColNames	character array of column names to check.

Value

logical TRUE if the rows of data are unique addressable by the columns named in keyColNames.

Examples

d <- data.frame(key = c('a','a', 'b'), k2 = c(1 ,2, 2))
checkColsFormUniqueKeys(d, 'key') # should be FALSE
checkColsFormUniqueKeys(d, c('key', 'k2')) # should be TRUE

wrapr documentation built on Aug. 20, 2023, 1:08 a.m.