Usage
validCall(object, which = "UnitName")
validPVal(object, which = "UnitName")
CallTreeSet.data.frame.
validCall returns the present calls from slot detcall as data.frame
and uses column which as row names, usually the probeset IDs stored in column
UnitName. Method validPVal returns the detection call p-values from slot data as
data.frame and uses column which as row names, usually the probeset IDs
stored in column UnitName.
validData, validExpr