Sampling proportion added to Birth-Death, based on Tanja derivation. Not tested by simulation. Expressions are identical to the ones pre-change when the default proportion (1) is used.
Sampling proportion added to Birth-Death, based on Tanja derivation. Not tested by simulation. Expressions are identical to the ones pre-change when the default proportion (1) is used.

benb/beast-mcmc,benb/beast-mcmc,benb/beast-mcmc,benb/beast-mcmc,benb/beast-mcmc