computeZonenoise {sscore} | R Documentation |
Computes the noise (average standard error) of the probe intensities for a single Affymetrix GeneChip
computeZonenoise(index, intensity, stdv, npixels, bgCells)
index |
vector of indices for probes in the given zone |
intensity |
vector of intensities for the GeneChip |
stdv |
vector of standard deviations for the GeneChip |
npixels |
vector containing number of pixels for each probe of the GeneChip |
bgCells |
number of background cells on the GeneChip |
Calculates the noise (average standard error) of the probes in a given zone, using the algorithms described in the Affymetrix Statistical Algorithms Description Document, for a single GeneChip. This is an internal function that will generally not be accessed directly.
the noise of the probes for the given array
Based on Affymetrix MAS5 Statistical SDK source code http://www.affymetrix.com/Auth/support/developer/stat_sdk/STAT_SDK_source.zip, as well as C++ code by Li Zhang and Delphi code by Robnet Kerns
Richard Kennedy rkennedy@vcu.edu
Affymetrix (2002) Statistical Algorithms Description Document, Affymetrix Inc., Santa Clara, CA, whitepaper. http://www.affymetrix.com/support/technical/whitepapers/sadd_whitepaper.pdf