Message-ID: <Pine.LNX.4.64.0705072101130.6489@gannet.stats.ox.ac.uk>
Date: 2007-05-07T20:02:32Z
From: Brian Ripley
Subject: Qt device update
In-Reply-To: <eb555e660705071207m1f05a9c4j316b38b02f7f6aa3@mail.gmail.com>
On Mon, 7 May 2007, Deepayan Sarkar wrote:
> On 5/5/07, Prof Brian Ripley <ripley at stats.ox.ac.uk> wrote:
>
> [...]
>
>> o dev.interactive() regards devices with the displaylist
>> enabled
>> as interactive, and packages can register the names of their
>> devices as interactive via deviceIsInteractive().
>
> Thanks. A related issue: 2.5.0's NEWS has:
>
> o options(device = ) now accepts a function object as well as
> the name of a function.
>
> (For some reason, I had thought this was true all along, but in any
> case) This means that it's now reasonable to do
>
>> options(device = function() x11("", 4, 4))
>
> But then I get (iff there is no device open)
>
>> example(glm)
> Error in match(x, table, nomatch = 0) : 'match' requires vector arguments
>
> because dev.interactive() doesn't know about the change yet.
> dev.interactive() cannot really do anything useful in this case, but
> an error seems too harsh (especially since example(glm) doesn't even
> have any graphics).
Thanks, easily fixed.
--
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595