R: Check for missing values

is.missing {splus2R} | R Documentation

## Check for missing values

### Description

Check to see whether the input is either NA or a vector of length 0.

### Usage

    is.missing(x)

### Arguments

`x` | object to check.

### Value

TRUE if the input is a vector of length 0; `is.na(x)` otherwise.

### See Also

`anyMissing`.

### Examples

    is.missing(numeric(0))
    is.missing(NA)
    is.missing(c(1,2,3,NA,5))

[Package splus2R version 1.2-2 Index]