Why would you do this, when lists are fundamental types in R?
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Shing Hing Man <matmsh@yahoo.com> wrote:

Hi, I am trying to create a linked list in R by defining a class Node which has a instance variable Node. setClass("Node", representation(rate="numeric", nextNode="ANY")) The above works. But the following gives me a warning message. setClass("Node", representation(rate="numeric", nextNode="Node")) > > setClass("Node", representation(rate="numeric", nextNode="ANY")) [1] "Node" > removeClass("Node") [1] TRUE > > setClass("Node", representation(rate="numeric", nextNode="Node")) [1] "Node" Warning message: undefined slot classes in definition of "Node": nextNode(class "Node") > In the case when nextNode is type Node, is it possible to get ride of the above "undefined slot classes" warning message ? Thanks in advance for any assistance! Shing_____________________________________________
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