[BioC] mogene20stcdf

[James W. MacDonald]

Hi Nikul,

You won't be able to use the affy package to process these files. 
Instead you can use either oligo or xps. As for the .db file, those 
files are supplied by Arthur Li, and apparently he hasn't made them for 
the 2.0 series. There is apparently a way to add the annotation to xps, 
but you will have to either look at the help pages or vignettes or wait 
for Christian Stratowa to chime in.

You can also use the AnnotationForge package to create your own .db 
file, but that is a relatively involved process, as the annotation data 
from Affy are not that easy to parse.

Best,

Jim



On 5/2/2013 6:55 AM, Nikul Soni wrote:
> Hi all,
>
> I am a beginner in R and i use R studio to analyse my mouse liver arrays. I
> am doing my micro array analysis and it misses cdf environment. I check all
> the database in R and i cant found for the new chip  Mogene20 and its
> database i.e. its .db file. is there any possibility that i can download it
> from other sources.
>
> Regards
> Nikul
>
>
>
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-- 
James W. MacDonald, M.S.
Biostatistician
University of Washington
Environmental and Occupational Health Sciences
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Seattle WA 98105-6099