Get the omega scaling factor.
The rate matrix of the
GY94 model is scaled in a way that the expected number
of potential substiutions per site is equal to one at equlibrium.
The codeml program from the PAML package scales the rate matrix in order to have
the expected number of accepted substiutions per site equal to one.
This method calculates the branch length multiplier needed for switching to PAML-style scaling given a fixed omega.
A GY94 object.
The value of omega.
A numeric vector of length one.
Botond Sipos, Gregory Jordan
For more information see
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