[BioC] Problem of using Affy!

[Kasper Daniel Hansen]

What is happening is that you need something called a cdf  
environment. It is basically and R package with the name CHIPNAMEcdf,  
like hgu95av2cdf. Affy sees that this package is not installed and  
tries to download and install it for you. Apparently something went  
wrong. You could try downloading the package manually and install it  
yourself from the bioconductor website. There you'll also find a  
listing of existing packages in case you are uncertain about the  
name. Look for "Metadata".

/Kasper


On Jul 7, 2006, at 7:22 AM, Zeny Feng wrote:

>
>
> I am trying the software affy. I follow the user manu of affy and  
> put all the
>  cel files in the working directory. But when i use the rma  
> command, there are
>  many warning messages. for example,
>
>  cannot open: HTTP status was '404 Not Found'
>  Note: http://www.bioconductor.org/CRANrepository does not seem to  
> have a valid
>  repository, skipping
>
>  I check the web: http://www.bioconductor.org/CRANrepository
>  it was really "404 not found".
>
>  The attached file has a print out of the warning message.
>
>  Can you tell me what should I do in order to use affy?
>
>  Thanks a lot!
>
>  Zeny
>
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