[R] Problem with colormodel in pdf driver - with R patched

[Luis Torgo]

>
> Or update your R, as the posting guide suggested.  It works in 
> R-patched and R-devel.
I've tried the patched version but I still have some problems with the 
colormodel.
My version

 > R.version
               _                                         
platform       x86_64-unknown-linux-gnu                  
arch           x86_64                                    
os             linux-gnu                                 
system         x86_64, linux-gnu                         
status         Patched                                   
major          2                                         
minor          8.1                                       
year           2009                                      
month          01                                        
day            24                                        
svn rev        47727                                     
language       R                                         
version.string R version 2.8.1 Patched (2009-01-24 r47727)

I've created the following graph:

pdf('fig8_6.pdf',colormodel='gray')
barplot(table(subset(iris,Petal.Width>1)$Species))
dev.off()

The file "fig8_6.pdf" was then compiled into a document with pdflatex.

My publisher is "complaining" that the figure is not grayscale. He 
attached a picture that I also include in this email where he has used 
some software that allows him to exclude colors from the visualization. 
As it can be seen when including only Cyan, Magenta and Yellow there are 
still some parts of the figure that appear, whilst the rest of the book 
goes away...

Strangely enough all other figures of the book, which were created with 
the non-patched version of R (R version 2.8.1 (2008-12-22)), using 
exactly the same call to the pdf driver, do not have this "problem".


Any help is welcome.

Luis Torgo

-- 
Luis Torgo
   FEP/LIAAD - INESC Porto, LA   Phone : (+351) 22 339 20 93
   University of Porto           Fax   : (+351) 22 339 20 99
   R. de Ceuta, 118, 6o          email : ltorgo at liaad.up.pt
   4050-190 PORTO - PORTUGAL     WWW   : http://www.liaad.up.pt/~ltorgo

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