Since unequal probabilities are incorporated in calculating the
density via dsb, all branches are assumed to be of unit length.
Thus, the dloc function simply returns 0 if log=TRUE and 1 if log=FALSE.
dloc(loc, min = 0, max = 1, log = TRUE)rloc(k, min = 0, max = 1)
The location of the shift along the branch
The minimum position on the branch the shift can take
The maximum position on the branch the shift can take
A logical indicating whether the log density should be returned
The number of shifts to return along a branch
dloc calculates the probability of a shift occuring at a given
location along the branch assuming a uniform distribution of unit length
rloc randomly generates the location of a shift along the branch