FullBirthDeath(Number lambda, Number mu, Number rootAge, Number originAge)

A birth-death tree with both extant and extinct species.
Conditioned on age of root or origin.

Parameters

  • Number lambda - per-lineage birth rate.
  • Number mu - per-lineage death rate.
  • Number rootAge - (optional) the age of the root of the tree (only one of rootAge and originAge may be specified).
  • Number originAge - (optional) the age of the origin of the tree (only one of rootAge and originAge may be specified).

Return type

TimeTree

Examples

  • simpleFullBirthDeath.lphy

Reference

David G. Kendall. On the Generalized “Birth-and-Death” Process, The Annals of Mathematical Statistics, Ann. Math. Statist. 19(1), 1-15, March, 1948.https://doi.org/10.1214/aoms/1177730285