[BioC] Reading of .DAT files using Bioconductor

Jeff Sorenson jsorenson@bellsouth.net
Wed, 12 Feb 2003 21:02:07 -0600

On Linux, I've been using the rawtopgm utility followed by the convert
utility to obtain a file that can be viewed.

> Date: Tue, 11 Feb 2003 22:37:20 -0500
> Subject: Re: [BioC] Reading of .DAT files using Bioconductor
> Cc: bioconductor@stat.math.ethz.ch, Tapan Mehta <tapmehta@yahoo.com>
> To: Laurent Gautier <laurent@cbs.dtu.dk>
> From: Byron Ellis <bellis@hsph.harvard.edu>
> 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 :-)