lenu: Length of unique values
Extract unique elements and get the length of those elements
lenu(x = NULL)
x
: a vector or a data frame or an array or NULL.a vector, data frame, or array-like 'x' but with duplicate elements/rows removed.
unique(c(10, 3, 7, 10)) lenu(c(10, 3, 7, 10)) unique(c(10, 3, 7, 10, NA)) lenu(c(10, 3, 7, 10, NA)) lenu(c("b", "z", "b", "a", NA, NA, NA))
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