A ABSDataSet object with absolute differences, basemean, mean of each group, variance,
log2 of foldchange, named as 'absD', 'baseMean', 'Amean', 'Bmean',
'Variance' and 'foldChange', respectively. Use the results to get access it
Details
buliding a pseudo group to esitimate parameter by mean difference. shifted and calculate a set of parameters from normalized counts table before callDEs