Vector of parameters:
pars1[1] corresponds to b (= la_1 in Etienne & Rosindell R2012) = speciation initiation rate
pars1[2] corresponds to mu_1 (= mu_g in Etienne & Rosindell 2012) = extinction rate of good species
pars
pars1f
Vector of functions how the rates depend on time, default functions are constant functions of the parameters in pars1:
pars1f[1] corresponds to time-dependence of b (= la_1 in Etienne & Rosindell R2012) = speciation initiation rate
p
methode
sets which method should be used in the ode-solver. Default is 'lsoda'. See package deSolve for details.
brts
A set of branching times of a phylogeny, all positive, for which the density must be computed