Independent implementation of stratigraphic range tree density of Stadler et al.
src/srvalidate/SRTreeSimulator.java is a class that simulates trees from the stratigraphic range fossilized birth-death process.
The model implemented here is the budding speciation model of theorem 7, producing oriented sampled trees.
src/srvalidate/SRTreeDensity.java is a class that implements the computation of the probability density of a given oriented sampled tree,
as described in theorem 7.
Mathematical model details can be found:
"The fossilized birth-death model for the analysis of stratigraphic range data under different speciation concepts" (2017) by Tanja Stadler, Alexandra Gavryushkina, Rachel C.M. Warnock, Alexei J. Drummond, Tracy A. Heath https://arxiv.org/abs/1706.10106