n_valid() returns the number of vector elements that are not NA. It
returns the percentage of non-NA values if out = "pct", and a tibble
containing number and percentage if out = "n_pct".
pct_valid() is a wrapper around n_valid(out = "pct").
n_pct_valid() is a wrapper around n_pct_valid(out = "n_pct").
Usage
n_valid(x, out = c("n", "pct", "n_pct"), ...)
pct_valid(x, ...)
n_pct_valid(x, ...)