[BioC] Reading of .DAT files using Bioconductor(Thank you)
Wed, 12 Feb 2003 06:57:38 -0800 (PST)
Thank you for the help. I will try this method.
--- Byron Ellis <email@example.com> wrote:
> AFAIK the Affymetrix DAT format is actually very
> simple (though its
> been quite some time since I looked at a DAT file).
> It is just a block
> of 16-bit intensity values in a simple raw format
> after a 512-byte
> header. The header contains the gridding information
> and well as the
> image extents... If you have photoshop around, you
> can actually open
> the DAT file in Photoshop using the "RAW" file
> format if you like :-)
> On Tuesday, February 11, 2003, at 10:12 PM, Laurent
> Gautier wrote:
> > On Tue, Feb 11, 2003 at 12:31:18PM -0800, Tapan
> Mehta wrote:
> >> Hello,
> >> I want to read .DAT files using Bioconductor. Is
> >> possible to do so or do I need to get the .CEL
> >> to perform the analysis. Please guide me.
> >> Thanking you,
> >> Tapan Mehta
> > As far as I could figure it out, .DAT is a sort of
> > tweaked tiff format (chip scan + grid). MAS (and
> may be 'dchip')
> > only can deal with them. Unless somebody speaks
> > up to suggests otherwise, you'll have to get the
> CEL from
> > the DAT oustide bioconductor...
> > Hopin' it helps,
> > L.
> > _______________________________________________
> > Bioconductor mailing list
> > Bioconductor@stat.math.ethz.ch
> Byron Ellis (firstname.lastname@example.org)
> "Oook" - The Librarian
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