Liaw, Andy wrote:
> Given that the behavior is exactly as I expected it be, I would call
> that "feature" (and IMHO not a very special one). The two data frames
> are just different (try str() on them: A in dd is factor, while A in
> dd2 is character), so I don't know why you'd expect unlist() on
> "Herve" == Herve Pages <[EMAIL PROTECTED]>
> on Mon, 26 Mar 2007 20:48:33 -0700 writes:
Herve> Hi,
>> dd <- data.frame(A=c("b","c","a"), B=3:1) dd
Herve> A B 1 b 3 2 c 2 3 a 1
>> unlist(dd)
Herve> A1 A2 A3 B1 B2 B3 2 3 1 3 2 1
Herve> Someone else might get
Given that the behavior is exactly as I expected it be, I would call
that "feature" (and IMHO not a very special one). The two data frames
are just different (try str() on them: A in dd is factor, while A in
dd2 is character), so I don't know why you'd expect unlist() on them to
give you the same
Hi,
> dd <- data.frame(A=c("b","c","a"), B=3:1)
> dd
A B
1 b 3
2 c 2
3 a 1
> unlist(dd)
A1 A2 A3 B1 B2 B3
2 3 1 3 2 1
Someone else might get something different. It all depends on the
values of its 'stringsAsFactors' option:
> dd2 <- data.frame(A=c("b","c","a"), B=3:1, stringsAsFactors=F
