MAMA (version 1.0.2)

dataGEM: Data format converter

Description

Function to convert data from ExpressionSet to list of expression data matrix, group labels, probes names.

Usage

dataGEM(data, group)

Arguments

data

microarray data as object class ExpressionSet

group

number of column of pData with group labels

Value

• expr
  gene expression data matrix
• class
  vector with group labels
• keys
  vector of probe names

See Also

dataSOGL, dataZ

Examples

data(Singhdata)
exprs<-as.matrix(Singhdata$esets[[1]])
rownames(exprs)<-Singhdata$geneNames
metadata=data.frame(labelDescription=c("Normal/Tumour"), row.names=c("group"))
pData<-data.frame(group=Singhdata$classes[[1]]+1)
rownames(pData)<-colnames(exprs)
phenoData<-new("AnnotatedDataFrame", data=pData,varMetadata=metadata)
data<-new("ExpressionSet", exprs=exprs, phenoData=phenoData)
dataG<-dataGEM(data,1)