MAMA (version 1.0.2)

dataZ: Data format converter

Description

Function to convert data from ExpressionSet to form suitable for function Zscore

Usage

dataZ(data, group, nsamp, varname)

Arguments

data

ExpressionSet

group

number of column of pData with group identification

nsamp

number of samples in a group, same in each dataset and group

varname

group label

Value

• ExpressionSet with reduced number of samples and groups labeled 0,1

See Also

dataGEM, dataSOGL

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)
dataZ<-dataZ(data,1,5,"tumour")