Hi

Thanks for the help Pierre. I managed to resolve it. I am just using the 
AffymetrixCelSet$byName with the cdf information instead of the chipType. 
For some reason, that still refuses to work.

Nitesh


On Monday, 18 June 2012 11:39:34 UTC-4, NT_CMU wrote:
>
> Hi
>
> I am new to aroma.affymetrix. I am not sure why the command 
> "AffymetrixCelSet$byName" is not working. 
>
> cs <- AffymetrixCelSet$byName("test.CEL",chipType = 
> "../../annotationData/chipTypes/GenomeWideSNP_6")
> Error in method(static, ...) : 
> [2012-06-18 11:34:57] Exception: Failed to create AffymetrixCdfFile 
> object. Could to locate an annotation data file for chip type 
> '../../annotationData/chipTypes/GenomeWideSNP_6' (without requiring any 
> tags) and with filename extension 'cdf'.
>
>   at #04. method(static, ...)
>           - method() is in environment 'aroma.core'
>
>   at #03. AffymetrixCdfFile$byChipType(chipType)
>           - AffymetrixCdfFile$byChipType() is local of the calling function
>
>   at #02. method(static, ...)
>           - method() is in environment 'aroma.affymetrix'
>
>   at #01. AffymetrixCelSet$byName("test.CEL", chipType = 
> "../../annotationData/chipTypes/GenomeWideSNP_6")
>           - AffymetrixCelSet$byName() is local of the calling function
>
>
> I think my directory structure is wrong. But i could use some pointers on 
> how to get things moving because i've been trying to get this command 
> working for over 4 days now. 
>
> Also, another issue is I am able to load CDF files with the basic 
> "AffymetrixCdfFile("GenomeWideSNP_6,Full.CDF") ". But if i use the command 
> AffymetrixCdfFile$byChipType("GenomeWideSNP_6",tags="Full"), it gives me an 
> error. Am I doing something really wrong?
>
> Thanks
>
> Nitesh
>
>
>

-- 
When reporting problems on aroma.affymetrix, make sure 1) to run the latest 
version of the package, 2) to report the output of sessionInfo() and 
traceback(), and 3) to post a complete code example.


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