[BioC] Re: affy R cdf

Laurent Gautier laurent@genome.cbs.dtu.dk
Mon, 22 Apr 2002 14:33:32 +0200

On Fri, Apr 19, 2002 at 08:09:59AM -0700, Dennis P. Wall wrote:
> Dear Dr. Laurent,
> I recently found your very helpful affy package and preprocessed HU_95A
> CDF file.  I am confused about how to use the cdf file with the CEL file
> to generate expression data.  I keep getting the message "Error in
> read.cdf file (CDF file, compress = compress.cdf) : The specified file
> does not appear to be a CDF file."  Do you know how to avoid such an
> error?
> I sincerely appreciate your help.
> Best,
> Dennis

Dear Dr. Dennis,

Thanks for your comments and for reporting the problem.

This error message is usually generated when then given file is not a CDF file.
or when trying to read a compressed file while the flag 'compress' is set to FALSE (or the contrary). 

Does this help ?


Laurent Gautier			CBS, Building 208, DTU
PhD. Student			D-2800 Lyngby,Denmark	
tel: +45 45 25 24 85		http://www.cbs.dtu.dk/laurent