[Rd] history of objects() and ls()
wdunl@p @ending from tibco@com
Fri Jan 4 02:47:55 CET 2019
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 Thu, Jan 3, 2019 at 4:47 PM Peter Dalgaard <pdalgd using 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 using 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@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
> > ______________________________________________
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> Peter Dalgaard, Professor,
> Center for Statistics, Copenhagen Business School
> Solbjerg Plads 3, 2000 Frederiksberg, Denmark
> Phone: (+45)38153501
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