Has anyone successfully used "tpmap2bpmap" in affxparser to create a BPMAP from a TPMAP file?
  
   I successfully used the affxparser package to read in my BPMAP and  to write it out as a TPMAP.  When I try to write the TPMAP out back to  a BPMAP, i get an error.  The error is very upstream in the code, as it  doesnt matter whether the files I specify in the command even exist.
  
  Here is my error:
  
  > tpmap2bpmap(tpmapname='x', bpmapname='y');
  
  Error in tpmap2bpmap(tpmapname = "x", bpmapname = "y") :
  INTEGER() can only be applied to a 'integer', not a 'double'
  
  
  I'm using affxparser on a Windows machine under R2.5.
  
  Thanks
  
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