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invisible {base}

Change the Print Mode to Invisible
Package: 
base
Version: 
R 3.0.2

Description

Return a (temporarily) invisible copy of an object.

Usage

invisible(x)

Arguments

x
an arbitrary R object.

Details

This function can be useful when it is desired to have functions return values which can be assigned, but which do not print when they are not assigned.

This is a primitive function.

References

Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) The New S Language. Wadsworth & Brooks/Cole.

Examples

# These functions both return their argument
f1 <- function(x) x
f2 <- function(x) invisible(x)
f1(1)  # prints
f2(1)  # does not

Documentation reproduced from R 3.0.2. License: GPL-2.