F81 — The Felsenstein (1981) rate
matrix
Usage
F81(pi: Map<String,Double>, a: a)
→ CTMC<a>
Arguments
Underlined names in default expressions refer to other arguments. A
default beginning with ~ specifies a prior
distribution.
-
a: -
The alphabet
-
Default: The alphabet in the current context
Original default expressions
-
pi -
~SymmetricDirichletOn(letters(@a),1.0) -
a -
get_state(alphabet)
Description
Rate matrix with equal exchangabilities, unequal frequencies.
Citation
Felsenstein, Joseph (1993). Evolutionary trees from DNA sequences: A maximum likelihood approach. Journal of Molecular Evolution 17(6): 368--376. DOI: 10.1007%2FBF01734359