OneStepBiweightAlgorithm {sscore}R Documentation

One-step Tukey's biweight

Description

Computes one-step Tukey's biweight on a vector. Note that this implementation follows the Affymetrix code, which is different from the Tukey's biweight computed by the affy package.

Usage

OneStepBiweightAlgorithm(x, c, epsilon)

Arguments

x

vector of data

c

tuning constant (see details)

epsilon

fuzz value to avoid division by zero (see details)

Details

The details can be found in the given reference.

Value

A numeric value

Note

Based on Affymetrix MAS5 Statistical SDK source code http://www.affymetrix.com/Auth/support/developer/stat_sdk/STAT_SDK_source.zip

Author(s)

Richard Kennedy rkennedy@vcu.edu

References

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


[Package sscore version 1.66.0 Index]