There is a good reason for the error in the
matrix case. Consider what would need to
happen for:
m[3, 5] <- 100
to work.
Consistency might be a good thing here, but
if so I think it should be an error for the 1-D
case. This might be a useful difference between
1-D arrays and vectors. However, it isn't clear
(to me at least) what such a change would break.
Patrick Burns
[EMAIL PROTECTED]
+44 (0)20 8525 0696
http://www.burns-stat.com
(home of S Poetry and "A Guide for the Unwilling S User")
Rolf Turner wrote:
Consider:
> x <- array(1:12,dim=12)
> x[13]
[1] NA]
> m <- array(1:12,dim=c(3,4))
> m[3,5]
Error: subscript out of bounds
Can anyone tell me it there is a Good Reason for the difference in
behaviour
between 1 dimensional and higher dimensional arrays? In a bit of code
that
I was working on I expected the NA behaviour and didn't get it of
course. Then
I had to take evasive action to avoid the error.
Naive young thing that I am, I would prefer the NA behaviour to be
universal.
But I expect that, as usual, I'm overlooking something.
cheers,
Rolf Turner
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