how to check for NA in vectors?

[simonkolb]

Hello,

I might be missing something obvious, but I am failing to do a check of the following type:

data <- data.frame(A= c(NA,NA,2,2,1,1))
rules <- validate::validator(A %in% c(2, NA) )
out <- validate::confront(data, rules)
validate::aggregate(out, by='record')

validate is intepreting th NA in the vector incorrectly.

I need this functionality, since I am doing plausibility checks with hundreds of rules which consist of the type:

var %in% c(..., ..., NA)

Thanks