sum(is.na(x))
R/count_missing.R
count_missing.Rd
Count Missing Values in a Vector
Same as sum(is.na(x)), but without the allocation.
count_missing(x)
vector() Supported are logical, integer, double, complex and string vectors.
vector()
(integer(1)) number of missing values.
integer(1)
count_missing(c(1, 2, NA, 4, NA)) #> [1] 2