[R] loss of information in pdf plots

[Petr PIKAL]

Hi

> 
> Hi there
> 
> is it possible that pdfs generated using the pdf() function with default 

> settings leads to loss of information? I was plotting copy number 
changes 
> from Agilent 180k data in form of rectangles (rect()) while each 
rectangle
> represents one region of copy number change. When plotting into a pdf I 
> noticed that some very small rectangles do not appear (even after 
> extensive zooming) in the pdf using the pdf() function. But they do when 

> writing the screen output into a pdf using the GUI. Does anyone have 
some 
> advice on this how I can plot pdfs without losing information?

I am not sure if it has something to do with dingbats but you could try 
it.

Set

useDingbats=FALSE

in you pdf call.

Regards
Petr

> 
> Best wishes
> 
> Kristian
> 
> R version 2.14.0 (2011-10-31)
> Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)
> 
> locale:
> [1] de_DE.UTF-8/de_DE.UTF-8/de_DE.UTF-8/C/de_DE.UTF-8/de_DE.UTF-8
> 
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
> 
> other attached packages:
> [1] CGHregions_1.12.0 CGHcall_2.14.0    CGHbase_1.12.0    marray_1.32.0
> [5] limma_3.10.3      Biobase_2.14.0    DNAcopy_1.28.0    impute_1.28.0
> 
> loaded via a namespace (and not attached):
> [1] tools_2.14.0
> 
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