trimMean {sscore} | R Documentation |
Computes the trimmed mean for a vector. Note that this implementation follows the Affymetrix code, which gives different results than the standard R function mean().
trimMean(vec, p1, p2)
vec |
vector of values |
p1 |
lower percentage for trimming |
p2 |
upper percentage for trimming |
The details can be found in the given reference.
A numeric value
Based on Affymetrix MAS5 Statistical SDK source code http://www.affymetrix.com/Auth/support/developer/stat_sdk/STAT_SDK_source.zip
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