Computes 2 * |A intersection B| / (|A| + |B|). Returns 0 if both sets are
empty (matches web tool convention).
Usage
dice(size_a, size_b, intersection)
Arguments
- size_a
Inclusive size of set A (integer >= 0).
- size_b
Inclusive size of set B (integer >= 0).
- intersection
Inclusive intersection size |A intersection B|.
Examples
dice(10, 10, 5)
#> [1] 0.5