From @eliv@nov@dmitriy @ending from gm@il@com  Wed Nov 21 17:58:12 2018
From: @eliv@nov@dmitriy @ending from gm@il@com (Dmitriy Selivanov)
Date: Wed, 21 Nov 2018 20:58:12 +0400
Subject: [Rd] Subsetting row in single column matrix drops names in
 resulting vector
In-Reply-To: <4e29953f-7542-c4b1-ffd3-fa32d857f715@sapo.pt>
References: <CAJdZCv0qGoOG6a0V1uzg7tgDRQUjkzn4We=tkb_N1770nr+MHg@mail.gmail.com>
 <4e29953f-7542-c4b1-ffd3-fa32d857f715@sapo.pt>
Message-ID: <CAJdZCv3YC++9uonxm9LjuEx7E-ocAav-bpcwXqL9HMzJoPFyYA@mail.gmail.com>

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 .

??, 21 ????. 2018 ?. ? 20:54, Rui Barradas <ruipbarradas at sapo.pt>:

> Hello,
>
> Use drop = FALSE.
>
> a[1, , drop = FALSE]
> #     col1
> #row1    1
>
>
> Hope this helps,
>
> Rui Barradas
>
> ?s 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 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, 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 columns is > 1.
> > Same issue applicable to single row matrix. Is it a bug? looks very
> > counterintuitive.
> >
> >
>


-- 
Regards
Dmitriy Selivanov

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[Rd] Subsetting row in single column matrix drops names in resulting vector
Dmitriy Selivanov