limma (version 3.28.14)

exprs.MA: Extract Log-Expression Matrix from MAList

Description

Extract the matrix of log-expression values from an MAList object.

Usage

exprs.MA(MA)

Arguments

MA

an MAList object.

Value

A numeric matrix with twice the columns of the input.

Details

Converts M and A-values to log-expression values. The output matrix will have two columns for each array, in the order green, red for each array.

This contrasts with as.matrix.MAList which extracts the M-values only, or RG.MA which converts to expression values in RGList form.

See Also

02.Classes gives an overview of data classes used in LIMMA.