\name{AlleleSet-methods} \docType{methods} \alias{A} \alias{A,AlleleSet-method} \alias{A<-} \alias{A<-,AlleleSet,matrix-method} \alias{B} \alias{B,AlleleSet-method} \alias{B<-} \alias{B<-,AlleleSet,matrix-method} \title{Indicator for polymorphic probes} \description{ This functions uses the annotation slot of the AlleleSet object to load the corresponding annotation package and determine whether each probe in the object interrogates a polymorphic or nonpolymorphic allele. For instance, in the Affy 6.0 platform roughly 900,000 of the 1.8 million markers are for polymorphic alleles. } \usage{ A(object) B(object) } \arguments{ \item{object}{AlleleSet object} } \value{ matrix of normalized intensities } \keyword{manip}