transeS {LMGene}R Documentation

Function to apply the glog transform to an expression set. Returns the transformed expression set (not normalized).

Description

For each element in the array of expression data, this applies the glog transform y -> glog (y-alpha, lambda). If alpha is a vector, it must have one entry per sample, and transeS will use the appropriate entry from the vector.

Usage

transeS(eS, lambda, alpha)

Arguments

eS An unprocessed expression set.
lambda The parameter lambda to be used in the glog transform (Durbin and Rocke 2003).
alpha The alpha parameter(s) for the glog transform. May be a single number used for all samples, or a vector with one entry per sample.

Value

Returns an expression set with the same vlist as eS, but the matrix is now glog-transformed. That matrix can be normalized with norm or lnorm.

Author(s)

John Tillinghast

Examples


data(sample.eS)
transeS (sample.eS, 667, 65) -> trsample.eS

[Package LMGene version 1.12.0 Index]