invisible {base} | R Documentation

## Change the Print Mode to Invisible

### 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.

### See Also

`return`, `function`.

### Examples

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