The reason that multi-[column|row] and one-[column|row] matrices should
be treated in the same way as to names kept in the result sounds good to
me. I withdraw my remark.
Serguei.
Le 27/11/2018 à 15:48, Radford Neal a écrit :
The behaviour of a[1,] is unchanged, for backwards compatibility
re
> > The behaviour of a[1,] is unchanged, for backwards compatibility
> > reasons. But in pqR one can explicitly mark an argument as
> > missing using "_". When an array subscript is missing in this way,
> > the names will not be dropped in this context even if there is
> > only one of them. So a
Le 27/11/2018 à 01:50, Radford Neal a écrit :
Dmitriy Selivanov (selivanov.dmit...@gmail.com) wrote:
Consider following example:
a = matrix(1:2, nrow = 2, dimnames = list(c("row1", "row2"), c("col1")))
a[1, ]
# 1
It returns *unnamed* vector `1` where I would expect named vector. In fact
it re
Dmitriy Selivanov (selivanov.dmit...@gmail.com) wrote:
> Consider following example:
>
> a = matrix(1:2, nrow = 2, dimnames = list(c("row1", "row2"), c("col1")))
> a[1, ]
> # 1
>
> It returns *unnamed* vector `1` where I would expect named vector. In fact
> it returns named vector when number of c
Emil, thanks for very nice explanation. Wish base drop would have same
behavior as abind::adrop.
чт, 22 нояб. 2018 г., 17:47 Emil Bode emil.b...@dans.knaw.nl:
> The problem is that the drop is only applied (or not) after the
> subsetting, so what R does is:
> - Getting the subset, which means a 1
Le 22/11/2018 à 14:47, Emil Bode a écrit :
The problem is that the drop is only applied (or not) after the subsetting, so
what R does is:
- Getting the subset, which means a 1 x 1 matrix.
- Only then It either returns that as is (when drop=FALSE), or removes ALL
dimensions of extent 1, regardle
The problem is that the drop is only applied (or not) after the subsetting, so
what R does is:
- Getting the subset, which means a 1 x 1 matrix.
- Only then It either returns that as is (when drop=FALSE), or removes ALL
dimensions of extent 1, regardless of whether these are rows or columns (or
Hi Rui. Thanks for answer, I'm aware of drop = FALSE option. Unfortunately
it doesn't resolve the issue - I'm expecting to get a vector, not a matrix .
ср, 21 нояб. 2018 г. в 20:54, Rui Barradas :
> Hello,
>
> Use drop = FALSE.
>
> a[1, , drop = FALSE]
> # col1
> #row11
>
>
> Hope this he
Hello,
Use drop = FALSE.
a[1, , drop = FALSE]
# col1
#row11
Hope this helps,
Rui Barradas
Às 16:51 de 21/11/2018, Dmitriy Selivanov escreveu:
Hello here. I'm struggling to understand R's subsetting behavior in couple
of edge cases - subsetting row in a single column matrix and subse
Hello here. I'm struggling to understand R's subsetting behavior in couple
of edge cases - subsetting row in a single column matrix and subsetting
column in a single row matrix. I've read R's docs several times and haven't
found answer.
Consider following example:
a = matrix(1:2, nrow = 2, dimnam
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