From wdunl@p @ending from tibco@com  Fri Jan  4 02:47:55 2019
From: wdunl@p @ending from tibco@com (William Dunlap)
Date: Thu, 3 Jan 2019 17:47:55 -0800
Subject: [Rd] history of objects() and ls()
In-Reply-To: <307C1E66-8B39-44F4-B861-040BAFD99667@gmail.com>
References: <c0420341-e400-9e7f-b110-2d970d6e7815@gmail.com>
 <307C1E66-8B39-44F4-B861-040BAFD99667@gmail.com>
Message-ID: <CAF8bMcY-WjR88P4YYMVvmTev8yuVHoTtZC_7NXZhW6AYj3FDjw@mail.gmail.com>

S-PLUS took it from S, sometime in the early 1990's.  The "White Book"
("Statistical Models in S", Chambers and Hastie, eds.,1992), uses objects()
on p.88..

Bill Dunlap
TIBCO Software
wdunlap tibco.com


On Thu, Jan 3, 2019 at 4:47 PM Peter Dalgaard <pdalgd at gmail.com> wrote:

> As far as I remember, this comes from S-PLUS, introduced around v.3 (white
> book?) or maybe v.4, and due to a desire to cut some Unix ties as MS-DOS
> was taking over the world. However, it was long ago, in a different world,
> and besides, S-PLUS is dead (mostly).
>
> - Peter
>
> > On 4 Jan 2019, at 00:45 , Ben Bolker <bbolker at gmail.com> wrote:
> >
> >
> >  I found out today (maybe I had known sometime before??) that objects()
> > is a synonym for ls().  I'm curious about the history, which seems to go
> > at least back to the beginning of R.  It's been thus since SVN revision
> > 2 (Sep 1997) ...
> >
> > svn cat https://svn.r-project.org/R/trunk/src/library/base/R/attach at 2 |
> > grep objects
> >
> >  I had a quick look at the Becker & Chambers brown book (1984) and
> > Becker and Wilks blue book (1988) on Google books and could find ls but
> > not objects() ... ?
> >
> >  Anyone happen to know?
> >
> > cheers
> >   Ben Bolker
> >
> > ______________________________________________
> > R-devel at r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-devel
>
> --
> Peter Dalgaard, Professor,
> Center for Statistics, Copenhagen Business School
> Solbjerg Plads 3, 2000 Frederiksberg, Denmark
> Phone: (+45)38153501
> Office: A 4.23
> Email: pd.mes at cbs.dk  Priv: PDalgd at gmail.com
>
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
>

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[Rd] history of objects() and ls()
William Dunlap