 
As you may recall, I am trying to create CEL files from an AffyBatch
object (after having my original CEL files be corrected by Harshlight). 
http://article.gmane.org/gmane.science.biology.informatics.conductor/187
57
 
Since my R-skills are very basic, for this I mainly rely on
understanding examples available in vignettes or BioC mailing list...
As suggested, I would like to use the 'createCel' and 'updateCel'
commands from Affxparser. 
 
However, there is one thing in the 'createCel' help page i don't
understand, which has to do with the type of the CEL file
(binary,ASCII):
why should the version of the original input CEL files (that are used as
template to create the new, updated files) explicity be of version 3
(type = ASCII?)? 
 
After reading the help page I understand that the OUTPUT cannot be
anything else than v4 (type = binary), but what about the input? See
below. 
 
Thanks,
Guido
 
<copy/paste from help page 'createCel'>
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Read the CEL header
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
hdr <- readCelHeader(file)
stopifnot(hdr$version == 3)

 
------------------------------------------------ 
Guido Hooiveld, PhD 
Nutrition, Metabolism & Genomics Group 
Division of Human Nutrition 
Wageningen University 
Biotechnion, Bomenweg 2 
NL-6703 HD Wageningen 
the Netherlands 
tel: (+)31 317 485788 
fax: (+)31 317 483342 
internet:   http://nutrigene.4t.com <http://nutrigene.4t.com/>  
email:      guido.hooiveld@wur.nl 


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