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Graphics Device; locator function

4 messages · Judson, Dirk Eddelbuettel, denis brion +1 more

Original
Judson
# 
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'".

My device is "R Graphics: Device 2" which gives me no way to "right
click", etc. for Properties.

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
Dirk Eddelbuettel
#
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
denis brion
# 
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.
 
--- En date de?: Sam 3.10.09, Dirk Eddelbuettel <edd at debian.org> a ?crit?:
Michael Dewey
#
At 14:40 04/10/2009, denis brion wrote:

            

      
      
      
    

        
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

            

      
      
      
    

        

      
      
    

            

      
      
      
    

        

      
      
    

        
Michael Dewey
http://www.aghmed.fsnet.co.uk