[R-sig-Debian] Graphics Device; locator function

[Michael Dewey]

At 14:40 04/10/2009, denis brion wrote:

>I believe I remember "locator" finishes with a right click;
>And, it is out of topic, but "net""books" may 
>have a very small screen : before drawing, I 
>usually configure my screen with 
>"X11(height=10)" which explicitly opens the 
>graphical device and gives a screen which is fully seeable.

Somewhere on one of the R lists, someone 
suggested (sorry not to be more specific)

setHook(packageEvent("grDevices", "onLoad"),
    function(...) grDevices::X11.options(width = 4, height = 4, pointsize = 8)
)

in your .Rprofile for use on the Asus EEE
I imagine with judicious choices of width and 
height it would work as well on other systems. It certainly works for me

>
>--- En date de : Sam 3.10.09, Dirk Eddelbuettel <edd at debian.org> a écrit :
>
> > De: Dirk Eddelbuettel <edd at debian.org>
> > Objet: Re: [R-sig-Debian] Graphics Device; locator function
> > À: "Judson" <judson0423 at gmail.com>
> > Cc: r-sig-debian at r-project.org
> > Date: Samedi 3 Octobre 2009, 21h24
> >
> > On 3 October 2009 at 15:04, Judson wrote:
> > | Hi, haven't been here for a while, but everyone one was
> > always so
> > | helpful I thought I would ask you another really basic
> > question.
> > |
> > | I'm running R2.9.1 in Ubuntu8.04 on a netbook (maxed out
> > on memory etc
> > | so I don't think that's a problem - wth it's a Dell Mini
> > 9" with that
> > | lpia non-architecture you told me about).
> > |
> > | Anyway, some of the graphics functions/parameters are
> > causing
> > | unresolved computation.  Wasn't sure what to do but
> > I've noticed that
> > | closing the graphics device causes the R routine to stop
> > at least.
> > |
> > | The most recent example is the locator function (but may
> > have caused
> > | the same thing a day or two ago with abline
> > |
> > | I did a help lookup on "locator" and the response tells
> > me that
> > | "locator is supported only on devices such as 'X11',
> > 'windows', and
> > | 'quartz'".
> >
> > X11 is what is what you probably have.  See
> >
> >     options("device")
> >
> > and
> >
> >     help(options)
> >
> > which shows
> >
> > 
> -----------------------------------------------------------------------------
> > Options set in package grDevices:
> >
> >      These will be set when package
> > 'grDevices' (or its name space) is
> >      loaded if not already set.
> >
> >      'device': a character string
> > giving the name of a function, or the
> >           function object itself,
> > which when called creates a new
> >           graphics device of the
> > default type for that session.  The
> >           value of this option
> > defaults to the normal screen device
> >           (e.g., 'X11', 'windows'
> > or 'quartz') for an interactive
> >           session, and 'pdf' in
> > batch use or if a screen is not
> >           available.  If set
> > to the name of a device, the device is
> >           looked for first from
> > the global environment (that is down
> >           the usual search path)
> > and then in the 'grDevices' namespace.
> >
> >           The default values in
> > interactive and non-interactive
> >           sessions are
> > configurable via environment variables
> >           'R_INTERACTIVE_DEVICE'
> > and 'R_DEFAULT_DEVICE' respectively.
> >
> > 
> -----------------------------------------------------------------------------
> >
> > | My device is "R Graphics: Device 2" which gives me no way
> > to "right
> > | click", etc. for Properties.
> >
> > Device 2 simply is a count of your devices.
> >
> > locator() is a little tricky to use, and I suspect you
> > simply didn't
> > "finish". I haven't used it in a while but AFAICR you need
> > to click on the
> > mouse in a particular sequence.
> >
> > Dirk
> >
> > | I failed to tell you that I'm running R in Emacs 22 (X11)
> > in the ESS
> > | Buffer.  I'm not very good at it but I'm
> > trying.  Thanks for your
> > | thoughts.
> > |
> > | Judson
> > |
> > | _______________________________________________
> > | R-SIG-Debian mailing list
> > | R-SIG-Debian at r-project.org
> > | https://stat.ethz.ch/mailman/listinfo/r-sig-debian
> >
> > --
> > Three out of two people have difficulties with fractions.
> >
> > _______________________________________________
> > R-SIG-Debian mailing list
> > R-SIG-Debian at r-project.org
> > https://stat.ethz.ch/mailman/listinfo/r-sig-debian
> >
>
>
>
>
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Michael Dewey
http://www.aghmed.fsnet.co.uk