R help - Sep 2006 - problem with png

I cannot generate png files running R2.2.1 on a  SunOS 5.9 machine. See
below.  I did a search on this problem and people who have virtually the
same error have solved the problem by installing or updating  libpng .
We downloaded libpng from Sun but still the problem remains. Does a path
within R need to be set to this file or does the problem indicate that
libpng was not installed properly?   I have no problems running on
various Linux OS's or a SunOS 5.8 machine.  I appreciate any help on
this issue.  We are using R2.2.1

 

David Ziger

Synopsys, Inc

 
> x <- c(1,2,3)
> y <- c(2,4,6)
> plot(x,y)
> png(file="myplot.png", bg="transparent")
Error in X11(paste("png::", filename, sep = ""), width,
height,
pointsize,  : 
        unable to start device PNG
In addition: Warning message:
no png support in this version of R 

 
> capabilities(what=NULL)
    jpeg      png    tcltk      X11 http/ftp  sockets   libxml     fifo 
   FALSE    FALSE     TRUE     TRUE     TRUE     TRUE     TRUE     TRUE 
  cledit    iconv      NLS 
   FALSE    FALSE     TRUE

 

 


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On Thu, 31 Aug 2006, David Ziger wrote:
> I cannot generate png files running R2.2.1 on a  SunOS 5.9 machine. See
> below.  I did a search on this problem and people who have virtually the
> same error have solved the problem by installing or updating  libpng .
> We downloaded libpng from Sun but still the problem remains. Does a path
> within R need to be set to this file or does the problem indicate that
> libpng was not installed properly?   I have no problems running on
> various Linux OS's or a SunOS 5.8 machine.  I appreciate any help on
> this issue.  We are using R2.2.1
You have to re-configure, re-make and re-install R.  While you are at it, 
why not use a current version of R (as in fact the posting guide asked you 
to before posting)?

[...]
> In addition: Warning message:
> no png support in this version of R 
This is covered in the 'R Installation and Administration' manual.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595