Normalize Affymetrix Probe Level Data - methods
Method for normalizing Affymetrix Probe Level Data
normalize.methods(object) bgcorrect.methods() upDate.bgcorrect.methods(x) pmcorrect.methods() upDate.pmcorrect.methods(x)
object |
An |
x |
A character vector that will replace the existing one. |
Other methodologies can be used by specifying them with the
method
argument. For example to use the invariant set
methodology described by Li and Wong (2001) one would type:
normalize(object, method="invariantset")
.
Further arguments passed by ...
, apart from method
, are
passed along to the function responsible for the methodology defined by
the method
argument.
A character vector of nicknames for the methodologies available
is returned by normalize.methods(object))
, where object
is an AffyBatch
, or simply by
typing normalize.AffyBatch.methods
. If the nickname of a method
is called "loess", the help page for that specific methodology can
be accessed by typing ?normalize.loess
.
For more on the normalization methodologies currently implemented please refer to the vignette ‘Custom Processing Methods’.
To add your own normalization procedures please refer to the customMethods vignette.
The functions: bgcorrect.methods
, pmcorrect.methods
,
provide access to internal vectors listing the corresponding capabilities.
if (require(affydata)) { data(Dilution) normalize.methods(Dilution) generateExprSet.methods() bgcorrect.methods() pmcorrect.methods() }
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