Displaying 4 results from an estimated 4 matches for "you'er".
2019 May 16
3
nrow(rbind(character(), character())) returns 2 (as documented but very unintuitive, IMHO)
...atrices (or data.frames) with rows
but no columns a very strange concept. The converse is not true, I
understand the utility of columns but no rows, particularly in the
data.frame case, but rows with no columns are observations we didn't
observe anything about. Strange, imho.
Also, I know that you said *each with size m*, but the generalization would
be
for n vectors with m = max(length(x_i))
nrow(rbind(x_1, ..., x_n)) = m
And that is the behavior now as documented, but *only* when length(x_i) >0
for all i (or, currently, when m == 0, so all vectors are length 0).
> nrow(rbind(1:5,...
2010 Oct 29
1
[LLVMdev] FDO (profile guided) and llvm
What is the status of this project? From the email archive, it seems this
question has popped up in the past, but there was no clear answer to it.
Thanks,
David
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2007 Aug 01
2
Couple installation questions
Hi,
I'm installing * 1.4.9 and a couple questions have come up:
1) I read here<http://www.voip-info.org/wiki/view/Asterisk+installation+for+CentOS+4.x>(
http://www.voip-info.org/wiki/view/Asterisk+installation+for+CentOS+4.x)
that if you are using E1 cards you need to install LIBPRI. I'm not using
any cards on this system, so does that mean I don't need LIBPRI? Asterisk
built OK without it but I'm curious if I'll have trouble down the road
somewhere...
2) As I mentioned, I don't have any cards so I'll nee...
2019 May 16
5
nrow(rbind(character(), character())) returns 2 (as documented but very unintuitive, IMHO)
...ng R-core feels can/should change.
So I recently got bitten by the fact that
> nrow(rbind(character(), character()))
[1] 2
I was checking whether the result of an rbind call had more than one row,
and that unexpected returned true, causing all sorts of shenanigans
downstream as I'm sure you can imagine.
Now I know that from ?rbind
For ?cbind? (?rbind?), vectors of zero length (including ?NULL?)
>
> are ignored unless the result would have zero rows (columns), for
>
> S compatibility. (Zero-extent matrices do not occur in S3 and are
>
> not ignored i...