2.Classes {limma} | R Documentation

## Classes Defined by this Package

### Description

This package defines the following data classes.

`RGList`
  A class used to store raw intensities as they are read in from an image analysis output file, usually by `read.maimages`.
`MAList`
  Intensities converted to M-values and A-values, i.e., to contrasts on the log-scale. Usually created from an `RGList` using `MA.RG` or `normalizeBetweenArrays`.
`MArrayLM`
  Store the result of fitting gene-wise linear models to the normalized intensities or log-ratios. Usually created by `lmFit`.

Objects of these classes may be subsetted and multiple data objects may be combined.

All of these classes belong to the virtual class `LargeDataObject`. A `show` method is defined for `LargeDataOject`s which uses the utility function `printHead`.

### Author(s)

Gordon Smyth

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