[BioC] Anyone Know how to make a fake CEL file?

[Laurent Gautier]

On Tue, Oct 14, 2003 at 02:22:34PM -0400, Park, Richard wrote:
> I am trying to make a couple of fake cel files to represent a time course treatment between three time points. 
> I am trying to test the effects of normalization on various possible treatments. 
> Is there a way to make a fake CEL file? 

write.celfile
(although sketchy for the headers customization and without 
guaranty you can read it anywhere outside the package ;) ).

> and if there is, how do you know the corresponding x and y locations on the chip that correspond with the various affy ids? I know that this information is located in the various cdf files, but I am unaware of how to access that information. 
> 

cdfenvs hold the key (doc scattered across different places, among which 
the code unfortunately)


> Thanks for any help, 
> 
> 
> Richard Park 
> Immunology - Computational Data Analyzer
> Joslin Diabetes Center
> Ph: 617-732-2482
> Richard.Park at joslin.harvard.edu
> 
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