normalize.constant {affy}R Documentation

Scale probe intensities

Description

Scale array intensities in a AffyBatch.

Usage

normalize.AffyBatch.constant(abatch, refindex=1, FUN=mean, na.rm=TRUE)
normalize.constant(x, refconstant, FUN=mean, na.rm=TRUE)

Arguments

abatch an instance of the AffyBatch-class.
x a vector of intensities on a chip (to normalize to the reference).
refindex the index of the array used as a reference.
refconstant the constant used as a reference
FUN A function generating a value from the intensities on an array. Typically mean or median.
na.rm Paramater passed to the function FUN.

Value

An AffyBatch with an attribute "constant" holding the value of the factor used for scaling.

Author(s)

L. Gautier <laurent@cbs.dtu.dk>

See Also

AffyBatch


[Package affy version 1.8.1 Index]