| attachBgrd-methods {xps} | R Documentation |
Attach/remove background intensities to/from DataTreeSet.
Usage
attachBgrd(object, treenames = "*")
removeBgrd(object)
object |
Object of class "DataTreeSet". |
treenames |
Object of class "list" representing the names of the
ROOT background trees. |
Whenever one of the bgcorrect methods will be applied to raw CEL intensities,
the background intensities will be stored in ROOT background trees.
However, the background intensities will not be saved as data.frame bgrd,
thus avoiding memory problems. Function attachBgrd allows to fill slot bgrd
on demand.
attachBgrd exports intensities from background trees from ROOT
data file and saves as data.frame bgrd. treenames is a vector of
tree names to attach; for treenames="*" all trees from slot treenames
will be exported and background intensities attached as data.frame bgrd.
removeBgrd removes background intensities from DataTreeSet and
replaces data.frame bgrd with an empty data.frame of dim(0,0).
A DataTreeSet object.
Do not use attachBgrd unless you know that your computer has sufficient RAM,
especially when using exon arrays. It may be advisible to use a subset of treenames
only.
Christian Stratowa