This help topic is for R version 3.1.1. For the current version of R, try https://stat.ethz.ch/R-manual/R-patched/library/base/html/identity.html
identity {base}R Documentation

Identity Function

Description

A trivial identity function returning its argument.

Usage

identity(x)

Arguments

x

an R object.

[Package base version 3.1.1 ]