I have a class Details that contains information needed by FirstSet to do some calculations then a super class that returns Details and FirstSet. The problem seems to be in FirstSet where I use the function getAnumber(id).
setClass("Details", representation( ID = "character", Anumber = "numeric")) setGeneric("Details", def = function(object){standardGeneric("Details")}) setMethod("initialize", signature(.Object = "Details"), function(.Object, ID = "character", Anumber = numeric()){ .Object@ID = ID .Object@Anumber = 2 return(.Object) }) # getter for A number setGeneric("getAnumber", function(object){standardGeneric("getAnumber")}) setMethod("getAnumber","Details", function(object){return(Object@Anumber)}) setClass("FirstSet", representation( Anothernumber = "numeric")) setGeneric( name = "FirstSet", def = function(object){standardGeneric("FirstSet")} ) setMethod("initialize", signature(.Object = "FirstSet"), function (.Object, id = "character", multiplier = numeric()) { x = getAnumber(id) y = x * multiplier .Object@Anothernumber = y return(.Object) } ) setClass("Super", contains = c("Details", "FirstSet")) setGeneric("Super", def = function(object){standardGeneric("Super")}) setMethod("initialize", signature(.Object = "Super"), function(.Object, id = "character", Anumber = Anumber()){ Details<- new("Details", ID = id, Anumber = number) FirstSet <- new("FirstSet", Anothernumber = Anothernumber) Super <- new("Super", Details, FirstSet) return(.Object) }) ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.