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contar
2008 Aug 20
0
unlist on nested pairlists
unlist(recursive=FALSE) returns NULL elements when passed a nested
pairlist containing non-NULL data:
x <- pairlist(pairlist(1:2))
unlist(x, recursive=FALSE)
## [[1]]
## NULL
version 2.7.2 RC (2008-08-18 r46382) under linux
I'm unaware of any motivation for constructing the above data
structure, but if unlist is going to operate on it without error I
would be surprised if that is the