dimnames(X)[[2]] <- foo fails (PR#1122)
ripley@stats.ox.ac.uk writes:
Since this works in recent S-PLUS and is not in the FAQ as a difference, I presume it is an unintentional one. If it is intentional, this is for the wishlist that this be removed. S-PLUS (6.0)
X <- matrix(1:4, 2, 2) dimnames(X)[[2]] <- letters[1:2] X
a b [1,] 1 3 [2,] 2 4 R 1.3.1
X <- matrix(1:4, 2, 2) dimnames(X)[[2]] <- letters[1:2]
Error: more elements supplied than there are to replace
colnames(X) <- 1:2 dimnames(X)[[2]] <- letters[1:2] X
a b [1,] 1 3 [2,] 2 4 which is none too obvious an error message, and somewhat inconsistent.
Hmm. This is a consequence of
x<-NULL x[[2]]<- letters[1:2]
Error: more elements supplied than there are to replace which S-PLUS does differently. However, I'm not sure we really want this to change for the following reason:
x<-NULL x[[2]]<- letters[1:2] x
$"": NULL $value: [1] "a" "b"
x<-NULL x[[2]]<-"1" x
[1] "" "1" Now what does this do if the array extent has length 1?
x <- matrix(1:2,2) dimnames(X)[[2]] <- "a"
Problem in dimnames(X) <- .A0: Component 2 of dimnames has length 1, should be 2 Use traceback() to see the call stack
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