This function fits a linear model to processed DGEList data using the
limma package. It defines contrasts between groups and performs
differential expression analysis.
limmaFit(x, group.column)An eBayes object containing the fitted linear model and
results of the differential expression analysis.
A processed DGEList object containing normalized count data.
The name of the column in x$samples that contains
the grouping information for the samples.