Rev Language Reference


The fossilized birth death range matrix process describes the distribution of a matrix of species origin and extinction times under a model of asymmetric speciation and sampling of extinct species.


  • dnFBDRMatrix


dnFossilizedBirthDeathRangeMatrix(RealPos lambda, RealPos mu, RealPos psi, Probability rho, RealPos[] timeline, Natural k, String condition, Taxon[] taxa, Bool bounded, Bool binary)


lambda : RealPos (pass by const reference)
The speciation rate(s).
mu : RealPos (pass by const reference)
The extinction rate(s).
Default : 0
psi : RealPos (pass by const reference)
The fossil sampling rate(s).
Default : 0
rho : Probability (pass by const reference)
The extant sampling fraction.
Default : 1
timeline : RealPos[] (pass by const reference)
The rate interval change times of the piecewise constant process (from oldest to youngest).
Default : NULL
k : Natural (pass by const reference)
The fossil observation counts (total or [interval] or [interval][species]).
Default : NULL
condition : String (pass by value)
The condition of the process.
Default : time
Options : time|survival
taxa : Taxon[] (pass by const reference)
The taxa with stratigraphic ranges used for initialization.
bounded : Bool (pass by value)
Treat first and last occurrence ages as known range boundaries?
Default : TRUE
binary : Bool (pass by value)
Treat fossil counts as binary presence/absence data?
Default : FALSE

Domain Type


Fossil species samples are represented by their sampled stratigraphic ranges, consisting of a first and last occurrence, and sample count data. Sampling data may be provided by species, time interval, or both depending on the sampling model assumed.

See Also