.substitutionmode and code.type. The major models are:
E_ use empirical frequencies for
equilibrium probabilities.
Jukes, T. H. and Cantor, C. R. (1969)
Kimura, M. (1980)
Felsenstein, J. (1981)
Hasegawa, M. and Kishino, H. and Yano, T. (1985)
.show.option,
.code.type,
.identifier,
.EMControl,
phyclust.