estimateSizeFactors {DEXSeq}R Documentation

Estimate the size factors for an ExonCountSet

Description

This function takes the count data from an ExonCountSet object (object), and estimates the size factors as follows: Each column (sample) is divided by the geometric means of the rows. The median of these ratios (skipping the genes with a geometric mean of zero) is used as the size factor for this column.

Usage

## S4 method for signature 'ExonCountSet'
estimateSizeFactors(object)

Arguments

object

An ExonCountSet object

Value

The ExonCountSet passed as parameters, with the size factors filled in.

Author(s)

Simon Anders, sanders@fs.tum.de

Examples

	data("pasillaExons", package="pasilla")
	pasillaExons <- estimateSizeFactors( pasillaExons )
        sizeFactors( pasillaExons )

[Package DEXSeq version 1.0.2 Index]