This function performs transformation of phylostratum values.
Usage
tf_PS(phyex_set, transform = "qr")
Value
a PhyloExpressionSet object storing transformed Phylostratum levels.
Arguments
phyex_set
a PhyloExpressionSet S7 object.
transform
a character vector of any valid function that transforms PS values.
Possible values can be:
transform = "qr" (or "quantilerank") :
quantile rank transformation analogous to Julia function StatsBase.quantilerank
using method = :tied.
Author
Jaruwatana Sodai Lotharukpong and Lukas Maischak
Details
This function transforms the phylostratum assignment.
The return value of this function is a PhyloExpressionSet object with
transformed phylostratum tfPhylostratum as the first column, satisfying
PhyloExpressionSetBase. Note that the input transform must be an
available function, currently limited to only "qr" (or "quantilerank").