On Mon, Sep 24, 2012 at 9:22 PM, Christian Hoffmann <c-w.hoffm...@sunrise.ch> wrote: > Dear Deepayan Sarkar, > > I have (again) a question concerning "panel" and my function "SplomT", see > attachments. Some time ago you helped me to write this function, thanks > again. I have used it to great advantage in my statistics instructions. Now > the problem I encounter is that the .pdf figure generated in Sweave consists > of > > one extra empty page at the start.
This seems to be due to the get.gpar() call in the SplomT() function -- it produces a new page if it is called before any graphics output is drawn. That's not quite correct: The point is that grid.newpage() does some magic to NOT create a new page if it realizes that it is being called with a fresh device with nothing drawn on it yet. Calling get.gpar() is enough to make that magic fail, so the grid.newpage() call inside print.trellis() is actually creating a new page. Your options are: (1) get rid of the get.gpar()$cex call (can it be anything other than 1 on a new device?), or (2) call print(splom(...), newpage=FALSE) -Deepayan > This prevents it from showing up in the final .pdf document. I am not sure > whether this has any thing to do with Sweave. (If the statement is executed > on the command line, the plot in the Quartz window looks allright.) > > Since I have no full version of Adobe Acrobat I cannot eliminate the empty > first page. I tried to fiddle around with the panel functions, but was not > table to mimic my function. > > Thanks for your attention and for looking at my problem. > > Christian Hoffmann > > PS: for *r-devel*: Could this be an Sweave problem? > > Files attached: > SplomT.Rnw : File containing the Functiond and an example, > SplomT.tex : Result from Sweave of .Rnw, > SplomT.pdf : Result from TeXing the .tex, > Fig_A.pdf : Resulting figure from Sweave > SplomT.png : Screenshot of Fig_A.pdf > > sessionInfo() > R version 2.15.1 (2012-06-22) > Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit) > > locale: > [1] C > > attached base packages: > [1] tools tcltk stats4 splines parallel datasets compiler > [8] graphics grDevices stats grid utils methods base > > other attached packages: > [1] survival_2.36-14 spatial_7.3-3 rpart_3.1-53 nnet_7.3-1 > [5] nlme_3.1-104 mgcv_1.7-18 foreign_0.8-50 codetools_0.2-8 > [9] cluster_1.14.2 class_7.3-3 boot_1.3-4 Matrix_1.0-6 > [13] MASS_7.3-18 KernSmooth_2.23-7 cwhmisc_3.0 lattice_0.20-6 >> > > -- > Christian W. Hoffmann, > CH - 8915 Hausen am Albis, Switzerland > Rigiblickstrasse 15 b, Tel.+41-44-7640853 > c-w.hoffm...@sunrise.ch, > christ...@echoffmann.ch, > www.echoffmann.ch > ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
