R: Determine Which Values are Missing Values

which.na {muStat} | R Documentation

## Determine Which Values are Missing Values

### Description

which.na returns an integer vector describing which values in the input vector, if any, are missing

### Usage

    which.na(x)

### Arguments

`x` | a data object

### Value

integer vector containing indices of elements in x which are missing. If there are no missing values, the functions return an integer vector of length 0 ( numeric(0)).

### Author(s)

Knut M. Wittkowski kmw@rockefeller.edu

### See Also

`is.na`

### Examples

    x <- c(1, 4, NA, 0, 5)
    which.na(x)
    # [1] 3

[Package muStat version 1.7.0 Index]