maffy.normalize {affy}R Documentation

Normalize Itensities

Description

Normalizes feauture intensities from AffyBatchs

Usage

maffy.normalize(data,subset,verbose=FALSE,span=0.25,family="symmetric",log.it=TRUE)

Arguments

data an matrix of intensities.
subset a vector of indexes describing which probes to use for normalising.
verbose logical value.
span See loess.
family See loess.
log.it logical value.

Details

Please refer to references.

Value

The normalized intensities.

Author(s)

Magnus Astrand

References

Astrand, M. (2003) http://www.math.chalmers.se/~magnusaa/maffy/

See Also

maffy.subset

Examples

     data(affybatch.example)
     x <- pm(affybatch.example)[1:2000,1:3]
     mva.pairs(x)
     x <- maffy.normalize(x,subset=1:nrow(x))
     mva.pairs(x)

[Package affy version 1.4.32 Index]