From p.dalgaard@biostat.ku.dk  Thu Apr 22 22:55:14 1999
From: p.dalgaard@biostat.ku.dk (Peter Dalgaard BSA)
Date: 22 Apr 1999 23:55:14 +0200
Subject: options
In-Reply-To: Robert Gentleman's message of "Thu, 22 Apr 1999 15:06:05 -0400 (EDT)"
References: <Pine.SV4.4.05.9904221440170.7304-100000@hsph.harvard.edu>
Message-ID: <x2ogkggw1p.fsf@blueberry.kubism.ku.dk>

Robert Gentleman <rgentlem@hsph.harvard.edu> writes:

>  Duncan has said that in S, when he threaded it, options was a frame 0
> object and frame 0 was thread specific. We don't really have frames.
> Conceptually it seems that we are going to have to stick an environment
> between GlobalEnv and any evaluation envs where that environment 
> contains thread specific items (perhaps all assignments along that
> thread).

Hmm. Ross has also been talking about "frame 0" when talking about
attachments to position 1. Does that fit in?

If I get the picture right (I've never tried threads in S), there may
be an alternative where the thread-specific environment sits on top of
the the environment from which the thread is started, rather than
GlobalEnv.

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)             FAX: (+45) 35327907
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options
Peter Dalgaard BSA