splus2R: is.missing – R documentation

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is.missing

Check for missing values

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

is.missing(x)

`x`	object to check.

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

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

Supplemental S-PLUS Functionality in R

v1.3-3

GPL-2

Authors

William Constantine [aut], Tim Hesterberg [aut], Knut Wittkowski [ctb], Tingting Song [ctb], Bill Dunlap [ctb], Stephen Kaluzny [ctb, cre]

Initial release