nonkey: Get non-keys from a table
In decisionpatterns/data.table.plus: Extensions and Utilities for 'data.table'

Return the names of non-key columns

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nonkey(x)

nonkeys(x)

`x`	a data set that may have a key

character

data(iris)
setDT(iris)

nonkeys(iris)

setkey(iris, Species )
key(iris)
nonkey(iris)
setkey( iris, Species, Sepal.Length )

decisionpatterns/data.table.plus documentation built on June 15, 2020, 10:26 p.m.

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