
On Mon, Jan 7, 2019 at 12:19 PM David Mertz <mertz@gnosis.cx> wrote:
Under a partial ordering, a median may not be unique. Even under a total ordering this is true if some subset of elements form an equivalence class. But under partial ordering, the non-uniqueness can get much weirder.
I'm sure with more thought, weirder things can be thought of. But just as a quick example, it would be easy to write classes such that: a < b < c < a In such a case (or expand for an odd number of distinct things), it would be reasonable to call ANY element of [a, b, c] a median. That's funny, but it is not imprecise. -- Keeping medicines from the bloodstreams of the sick; food from the bellies of the hungry; books from the hands of the uneducated; technology from the underdeveloped; and putting advocates of freedom in prisons. Intellectual property is to the 21st century what the slave trade was to the 16th.