affy (version 1.50.0)

normalize.constant: 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

parameter passed to the function FUN.

Value

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

See Also

AffyBatch