which.na {muS2RC}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 muS2RC version 1.5.0 Index]