Preprocessing - Center gene expression data

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Description

This function takes as argument a matrix of gene expression measurements Y, and returns the matrix obtained after centering each column with respect to its mean.

Usage

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Center(Y)

Arguments

Y

The matrix of data to be centered.

Details

This function center each column of the gene expression matrix.

Value

The matrix of data obtained after centering each column with respect to its mean.

Author(s)

Alberto Cassese

Examples

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data(NCI_60)
Y <- NCI_60$Affy
Y<-Center(Y)