Consider in R-2.6.0 (also R-patched from yesterday): iris[1, c(TRUE, FALSE, FALSE, FALSE, FALSE)] ## Error in .subset2(xx, j) : recursive indexing failed at level 2 iris[1, c(FALSE, FALSE, FALSE, FALSE, TRUE)] ## Error in .subset2(xx, j) : attempt to select less than one element i.e. matrix-like indexing on data.frames, one logically-indexed dimension with only one value TRUE in it. It is not documented to work, but it did so in former versions of R. Is it a bug or withdrawn support? Uwe Ligges
bug (?) in [.data.frame with matrix-like indexing
2 messages · Uwe Ligges, Peter Dalgaard
Uwe Ligges wrote:
Consider in R-2.6.0 (also R-patched from yesterday): iris[1, c(TRUE, FALSE, FALSE, FALSE, FALSE)] ## Error in .subset2(xx, j) : recursive indexing failed at level 2 iris[1, c(FALSE, FALSE, FALSE, FALSE, TRUE)] ## Error in .subset2(xx, j) : attempt to select less than one element i.e. matrix-like indexing on data.frames, one logically-indexed dimension with only one value TRUE in it. It is not documented to work, but it did so in former versions of R. Is it a bug or withdrawn support?
It's been reported before. Looks unintentional. As I also said last time, the log for the relevant revision has "make DF[, 1] and DF[1:m, 1] consistent" (and it doesn't...)
Uwe Ligges
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