\name{NormChips}
\docType{instance}
\alias{NormChips}
\title{example exprSet instance}
\description{
This data set is a small excerp from an Affymetrix hgu133plus2
microarray experiment. It contains 8 chips from 4 patients, 2 B-cell-ALL
(acute lymphoblastic leukemia) and 2 T-cell-ALL patients. Two samples
per patient were hybridized onto the chips, one before treatment and one
after 6 hours GC (glucocorticoid) treatment. From every Affymetrix
GeneChip only 1000 probe sets are included in this small dataset. 

For further informations and examples refer to the package vignette
(which can be opened using the \code{\link{openMadbVignette}}). 
}
%\usage{data(smallALL)}
\format{An \code{\link[Biobase:class.ExpressionSet]{ExpressionSet}}
  containing the expression values from 1000 genes on 8 different
  Affymetrix GeneChips.} 

\keyword{data}