XDE (version 2.18.0)

studyCenter: Center the expression values in a study to zero

Description

Centers each study in a list so that the average expression value of each stuy is zero

Usage

studyCenter(object)

Arguments

object

An object of class ExpressionSetList

Value

An object of class ExpressionSetList

See Also

geneCenter, ExpressionSetList-class

Examples

  data(expressionSetList)
  centered <- studyCenter(expressionSetList)
  lapply(centered, function(object) round(mean(exprs(object)), 4))