Copied from http://www.cookbook-r.com/Manipulating_data/Comparing_vectors_or_factors_with_NA/. This function returns TRUE wherever elements are the same, including NA's, and FALSE everywhere else.

compareNA(v1, v2)

Arguments

v1

A vector

v2

A vector

Examples

a <- c(NA, 1, 2, NA) b <- c(1, NA, 2, NA) compareNA(a, b)
#> [1] FALSE FALSE TRUE TRUE