The version is 2.0b3, PRAP, parsimony and likelihood ratchet analyses with PAUP. Functions of PRAP 1. PRAP allows the calculation of Bremer support (BS, Decay values; Bremer 1988) using the parsimony ratchet algorithm (Nixon, 1999). Alternatively, BS can also be computed without using the ratchet. 2. In addition, simple...