%+=% {refer}

Add In Place

Description

Increase the value of an object on the search path. Equivalent to '+=' in other languages. See incr for details on implementation.

Usage

x %+=% value

Arguments

x

object to be modified; can be a symbol, character, or extraction language object.

value

value with which to change x by

Value

the new value of x, invisibly

Examples

x <- 1:10
x %+=% 10
identical(x, 11:20)  # TRUE