From @g|@nner|n| @end|ng |rom gm@||@com  Tue Feb  6 15:25:03 2024
From: @g|@nner|n| @end|ng |rom gm@||@com (Simone Giannerini)
Date: Tue, 6 Feb 2024 15:25:03 +0100
Subject: [Rd] NROW and NCOL on NULL
In-Reply-To: <CANcXGizv3sD3kiE__EUkuaESn44mvtQMrtpO_k=FjUwFQDGnVQ@mail.gmail.com>
References: <CANcXGizv3sD3kiE__EUkuaESn44mvtQMrtpO_k=FjUwFQDGnVQ@mail.gmail.com>
Message-ID: <CANcXGiyF-2hPtYKKyMJn015EK55uS02U52wPmiW7HuxERa6ncg@mail.gmail.com>

I just saw this
------------------------------------------------------------------------
r85704 | hornik | 2023-12-19 00:33:07 -0600 (Tue, 19 Dec 2023) | 1 line
Changed paths:
   M /trunk/doc/NEWS.Rd
   M /trunk/src/library/base/R/matrix.R
   M /trunk/src/library/base/man/nrow.Rd
   M /trunk/src/library/profile/Common.R

Have NCOL(NULL) return 0 instead of 1.
------------------------------------------------------------------------

Many thanks to Kurt and the whole R-core team!

Simone

On Sat, Sep 23, 2023 at 7:43?PM Simone Giannerini <sgiannerini at gmail.com> wrote:
>
> Dear list,
>
> I do not know what would be the 'correct' answer to the following but
> I think that they should return the same value to avoid potential
> problems and hard to debug errors.
>
> Regards,
>
> Simone
> ---------------------------------------
>
> > NCOL(NULL)
> [1] 1
>
> > NROW(NULL)
> [1] 0
>
> > sessionInfo()
> R version 4.3.1 RC (2023-06-08 r84523 ucrt)
> Platform: x86_64-w64-mingw32/x64 (64-bit)
> Running under: Windows 11 x64 (build 22621)
>
> Matrix products: default
>
>
> locale:
> [1] LC_COLLATE=Italian_Italy.utf8  LC_CTYPE=Italian_Italy.utf8
> [3] LC_MONETARY=Italian_Italy.utf8 LC_NUMERIC=C
> [5] LC_TIME=Italian_Italy.utf8
>
> time zone: Europe/Rome
> tzcode source: internal
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
>
> loaded via a namespace (and not attached):
> [1] compiler_4.3.1
>
> --
> ___________________________________________________
>
> Simone Giannerini
> Dipartimento di Scienze Statistiche "Paolo Fortunati"
> Universita' di Bologna
> Via delle belle arti 41 - 40126  Bologna,  ITALY
> Tel: +39 051 2098262  Fax: +39 051 232153
> https://simonegiannerini.net/
> ___________________________________________________



-- 
___________________________________________________

Simone Giannerini
Dipartimento di Scienze Statistiche "Paolo Fortunati"
Universita' di Bologna
Via delle belle arti 41 - 40126  Bologna,  ITALY
Tel: +39 051 2098262  Fax: +39 051 232153
https://simonegiannerini.net/



[Rd] NROW and NCOL on NULL
Simone Giannerini