estimate_rank_of_mrca_maximum_likelihood

estimate_rank_of_mrca_maximum_likelihood(coincident_ranks_from_first_disparity_through_first_commonality: Iterator[int], p_differentia_collision: float, prior: PriorBase) → float | None[source]

Estimate the most recent common ancestor (MRCA) at the rank with the highest posterior probability.

Parameters

coincident_ranks_from_first_disparity_through_first_commonality : typing.Iterator[int]

Iterator of integer values indicating the coincident ranks between two taxa.

Inclusive to first disparity and first commonality.

p_differentia_collisionfloat: The multiplicative inverse of the number of possible differentia.
priorPriorBase: Prior expectation for the distribution of MRCA generation between hereditary stratigraphic columns.

Returns

typing.Optional[float]: Estimated rank of the MRCA, or None if the two hereditary stratigraphic artifacts definitively share no common ancestor.

Notes

The midpoint rank will be estimated for windows of equal posterior probability.