Re: [Rd] history of objects() and ls()
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 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 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@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@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@cbs.dk Priv: pda...@gmail.com
>
> __
> R-devel@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
>
[[alternative HTML version deleted]]
__
R-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
Re: [Rd] history of objects() and ls()
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 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@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@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@cbs.dk Priv: pda...@gmail.com __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
[Rd] history of objects() and ls()
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@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@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
