PLMset-class: Class PLMset
Description
This is a class representation for Probe level Linear
  Models fitted to Affymetrix GeneChip probe level data.Objects from the Class
Objects can be created using the function fitPLMReferences
Bolstad, BM (2004) Low Level Analysis of High-density
    Oligonucleotide Array Data: Background, Normalization and
    Summarization. PhD Dissertation. University of California,
  Berkeley.