R Graphical Manual

Last data update: 2014.03.03

R: Checks if there are any missing values in an object or not

anyMissing

R Documentation

Checks if there are any missing values in an object or not

Checks if there are any missing values in an object or not.

 anyMissing(x, idxs=NULL, ...)
 colAnyMissings(x, rows=NULL, cols=NULL, ...)
 rowAnyMissings(x, rows=NULL, cols=NULL, ...)

`x`	A `vector`, a `list`, a `matrix`, a `data.frame`, or `NULL`.
`idxs, rows, cols`	A `vector` indicating subset of elements (or rows and/or columns) to operate over. If `NULL`, no subsetting is done.
`...`	Not used.

The implementation of this method is optimized for both speed and memory. The method will return TRUE as soon as a missing value is detected.

Returns TRUE if a missing value was detected, otherwise FALSE.

Henrik Bengtsson

 x <- rnorm(n=1000)
 x[seq(300,length(x),by=100)] <- NA
 stopifnot(anyMissing(x) == any(is.na(x)))