affy: tukey.biweight – R documentation

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affy

tukey.biweight

One-step Tukey's biweight

Description

One-step Tukey's biweight on a matrix.

Usage

tukey.biweight(x, c = 5, epsilon = 1e-04)

Arguments

`x`	a matrix.
`c`	tuning constant (see details).
`epsilon`	fuzzy value to avoid division by zero (see details).

Details

The details can be found in the given reference.

Value

a vector of values (one value per column in the input matrix).

References

Statistical Algorithms Description Document, 2002, Affymetrix.

Rafael A. Irizarry <rafa@ds.harvard.edu>, Laurent Gautier <lgautier@gmail.com>, Benjamin Milo Bolstad <bmb@bmbolstad.com>, and Crispin Miller <cmiller@picr.man.ac.uk> with contributions from Magnus Astrand <Magnus.Astrand@astrazeneca.com>, Leslie M. Cope <cope@mts.jhu.edu>, Robert Gentleman, Jeff Gentry, Conrad Halling <challing@agilixcorp.com>, Wolfgang Huber, James MacDonald <jmacdon@u.washington.edu>, Benjamin I. P. Rubinstein, Christopher Workman <workman@cbs.dtu.dk>, John Zhang

Initial release