dev.off(): is there a 'quiet'-mode?

Dear R experts,

On shutting down a device with dev.off(), the number and name of the new active device is returned/printed. How can this be prevented from being shown? Is there something like a 'quiet'-mode?

Like any other expression, if you assign the result to a variable, it 
won't be printed.  So

x <- dev.off()

would work.

If you don't want to waste a variable name, you can achieve the 
non-printing by wrapping the call in invisible():

invisible(dev.off())

will return the result with printing turned off.

Duncan Murdoch

Dear R experts,
On shutting down a device with dev.off(), the number and name of the
new active device is returned/printed. How can this be prevented from
being shown? Is there something like a 'quiet'-mode?

Cheers,
marius

I don;t know about a specific "quiet mode", but try the following:

  Dev.Off <-function(which=dev.cur()){ dummy<-dev.off(which) }
  X11()     ## Or whatever you use to get a new window
  Dev.Off()

Ted.

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Date: 12-May-10                                       Time: 23:21:36
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