F1x4 — F1x4 codon frequencies
Usage
F1x4(pi: Map<String,Double>, a: a)
→ Map<String,Double>
Arguments
Underlined names in default expressions refer to other arguments. A
default beginning with ~ specifies a prior
distribution.
-
a: -
The (codon) alphabet
-
Default: The alphabet in the current context
Original default expressions
-
pi -
~SymmetricDirichletOn(letters(getNucleotides(@a)),1.0) -
a -
get_state(alphabet)
Description
The F1x4 model describes codon frequencies pi' in terms of nucleotide frequencies pi:
pi'[ijk] = pi[i]*pi[l]*pi[k].
Examples
GY94(pi=F1x4)
F1x4(a=codons(DNA))