R help - Feb 2011 - Multi-page plots (Trellis)

Dear All -

I would like to make  multi-page plots, but my plots are writing over one
another - thus leaving just the last plot.  Here is what I am doing:

pollutionRose(temp, "nox", type="hour")
update(trellis.last.object(), layout =c(3,3,3) )

I would like 24 plots with 9 plots/page (the last page would not have 9
plots)

Is there any way to "force" layout to make 3 pages of plots but not
re-write
them ?  I do not understand why "layout" is not recognizing the page
number
request.  I have read several help pages/archives and cannot find what I
need.  Any help is greatly appreciated.

Thanks in advance!

Sherri Heck
Graduate Research Assistant
National Center for Atmospheric Research, Boulder CO
University of Colorado, Boulder CO

	[[alternative HTML version deleted]]

On Feb 10, 2011, at 2:39 PM, sherri heck wrote:
> Dear All -
>
> I would like to make  multi-page plots, but my plots are writing  
> over one
> another - thus leaving just the last plot.  Here is what I am doing:
>
> pollutionRose(temp, "nox", type="hour")
> update(trellis.last.object(), layout =c(3,3,3) )
update() only changes the list representation. If you want to send  
that to the active graphics device, you need to "print" it. See the  
relevant FAQ.
>
> I would like 24 plots with 9 plots/page (the last page would not  
> have 9
> plots)
>
> Is there any way to "force" layout to make 3 pages of plots but
not
> re-write
> them ?  I do not understand why "layout" is not recognizing the
page
> number
> request.  I have read several help pages/archives and cannot find  
> what I
> need.  Any help is greatly appreciated.
>
> Thanks in advance!
>
> Sherri Heck
> Graduate Research Assistant
> National Center for Atmospheric Research, Boulder CO
> University of Colorado, Boulder CO
>
> 	[[alternative HTML version deleted]]
>
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West Hartford, CT