Re: [Rd] Qt device update

From: Prof Brian Ripley <ripley_at_stats.ox.ac.uk>
Date: Mon, 07 May 2007 21:02:32 +0100 (BST)

On Mon, 7 May 2007, Deepayan Sarkar wrote:

> On 5/5/07, Prof Brian Ripley <ripley@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

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