[BioC] Trying to convert to ExpressionSet object problems

[Daniel Brewer]

Apologies.  Here is the sessionInfo()
> sessionInfo()
R version 2.4.1 (2006-12-18)
x86_64-unknown-linux-gnu

locale:
LC_CTYPE=en_GB.UTF-8;LC_NUMERIC=C;LC_TIME=en_GB.UTF-8;LC_COLLATE=en_GB.UTF-8;LC_MONETARY=en_GB.UTF-8;LC_MESSAGES=en_GB.UTF-8;LC_PAPER=en_GB.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_GB.UTF-8;LC_IDENTIFICATION=C

attached base packages:
[1] "splines"   "tools"     "stats"     "graphics"  "grDevices" "utils"
[7] "datasets"  "methods"   "base"

other attached packages:
      gcrma matchprobes        affy      affyio     Biobase
    "2.6.0"     "1.6.0"    "1.12.2"     "1.2.0"    "1.12.2"

Thanks to Robert for providing me with a lead.

Daniel

Robert Gentleman wrote:
> Since you did not follow the posting guide and provide us with the
> output of sessionInfo (or just about any other detail that would help
> someone that is not looking directly over your shoulder) it is a bit
> hard to know if it is surprising or not - my guess is that it is not...
> 
> 
> Daniel Brewer wrote:
>> Hello,
>>
>> I am having trouble converting an exprSet to an ExpressionSet.
>>
>>> U95B <- justGCRMA()
>> ... Add various bits to the pheno data and change the name of the samples
>>> class(U95B)
>> [1] "exprSet"
>> attr(,"package")
>> [1] "Biobase"
>>> U95B <- as(U95B,"ExpressionSet")
>> Error in validObject(.Object) : invalid class "ExpressionSet" object:
>> featureNames differ between AssayData members
>>
>> Anyone got any ideas what that means and how to fix it?  Also isn't it a
>> bit odd that justGCRMA produces the old type of object?
>>
>> Thanks
> 


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