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sscore (version 1.44.0)

computeZoneIInfo: Compute zone background and noise

Description

Computes the background and noise for a given zone of a single Affymetrix GeneChip

Usage

computeZoneIInfo(ZoneInfo, NumberBGCells)

Arguments

ZoneInfo
vector of intensities in a given zone
NumberBGCells
number of background cells for the GeneChip

Value

returns a list containing the following components:
background
background value for the given zone
noise
noise value for the given zone

Details

Calculates background and noise for a zone using the algorithms described in the Affymetrix Statistical Algorithms Description Document. This is an internal function that will generally not be accessed directly.

References

Affymetrix (2002) Statistical Algorithms Description Document, Affymetrix Inc., Santa Clara, CA, whitepaper. http://www.affymetrix.com/support/technical/whitepapers/sadd_whitepaper.pdf