[Rd] is class2 Parameter's Documentation is Ambiguous
Dario Strbenac
d@tr7320 @end|ng |rom un|@@ydney@edu@@u
Tue Aug 16 12:00:04 CEST 2022
Good day,
It appears that class2 needs to be of length 1.
> is(4, c("data.frame", "DataFrame"))
Error in is(4, c("data.frame", "DataFrame")) :
length(class2) == 1L is not TRUE
However, the documentation is "class1, class2: character strings giving the names of each of the two classes between which is relations are to be examined"
Also, class1 is not a parameter of the is function. It is a parameter of the extends function. I think the mention of "is relations" is unintended. Can the documenation be rewritten to remove the ambiguity for these?
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Dario Strbenac
University of Sydney
Camperdown NSW 2050
Australia
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