is_na: Checks whether the variable is NA
In msgr: Extends Messages, Warnings and Errors by Adding Levels and Log Files

Checks whether the variable is NA

is_na(x)

`x`	(any) The object to test

TRUE if x is NA, FALSE otherwise

is_na(1)
is_na("foo")
is_na(NA)

is_na(c(1, NA))
is_na(c(NA, NA))

msgr documentation built on Dec. 16, 2019, 5:41 p.m.

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