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2006 Nov 30
0
extending data.frame with S4 class
...L 'core'. Why is this, and can it be fixed? setOldClass(), prototype=, and initialize() don't seem to help. Thanks, Tim ---- setClass("numClass",representation("numeric",num="numeric")) nn <- new("numClass",2,num=1) nn nn+1 setClass("dfClass",representation("data.frame",num="numeric")) df <- new("dfClass",as.data.frame(BOD),num=1) df