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fancyclassextraslots
2004 May 21
0
Failure to preserve package attribute when coercing S4 objects (PR#6904)
...round by the introduction of dummy slots, but it
took me some time to track down.
> setClass("baseClass",representation(a="numeric"))
[1] "baseClass"
> setClass("fancyClass",contains="baseClass")
[1] "fancyClass"
>
setClass("fancyClassExtraSlots",representation(b="numeric"),contains="baseCl
ass")
[1] "fancyClassExtraSlots"
>
>
> aFP <- new("fancyClass",a=2)
> aFP2 <- new("fancyClassExtraSlots",a=2,b=3)
>
> aBP <- new("baseClass",a=1)
> aBPcas...