[BioC] Re: Opening a .DAT

[Tapan Mehta]

Hello,

Thanks a lot for your help. I will try this option and
get back to you if required. Thanks once again.

Tapan
--- Alberto de Luis Calvo <aldeluis@usal.es> wrote:
> Yes, you can open a DAT file in Photoshop with the
> CLS and RWS 
> parameters
> given in the DAT header or the CEL header, (actually
> the image 
> dimensions in pixels).
> 
> (example for hgu133a)
> 
> CLS=4733
> RWS=4733
> 
> (example for TEST3)
> 
> CLS=1167
> RWS=1167
> 
> You can type this dimensions in the "Raw Options"
> dialog of photoshop, 
> set "Depth" to 16 Bits, "Byte Order" to IBM PC and
> click in "Guess" 
> button to leave photoshop to set the Header Size (in
> these cases: 512 
> byte).
> 
> 
> In adition to Byron Ellis (bellis@hsph.harvard.edu)
> Date: Tue, 11 Feb 2003 22:37:20 -0500
> 
>  > 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 :-)
> 
> ...............................................
> Alberto de Luis (aldeluis@usal.es)
> Centro de Investigación del Cáncer
> Cancer Research Center
> Campus Miguel de Unamuno 37007
> Salamanca (Spain)
> ...............................................