Hi Robert,
  thanks for your reply. I tried several time to reinstall packages, but failed to find solution.
  here is seeeionInfor:
  > sessionInfo()
R version 2.6.1 (2007-11-26) 
i386-pc-mingw32 
  locale:
LC_COLLATE=English_Australia.1252;LC_CTYPE=English_Australia.1252;LC_MONETARY=English_Australia.1252;LC_NUMERIC=C;LC_TIME=English_Australia.1252
  attached base packages:
[1] tools     stats     graphics  grDevices datasets  utils     methods   base     
  other attached packages:
 [1] hgu95av2cdf_2.0.0      affydata_1.4.0         preprocessCore_1.0.0   affyio_1.6.1           Biobase_1.16.2        
 [6] aroma.affymetrix_0.8.3 affy_1.16.0            aroma.apd_0.1.3        R.huge_0.1.5           digest_0.3.1          
[11] aroma.light_1.6.0      affxparser_1.10.2      R.rsp_0.3.3            R.cache_0.1.6          EBImage_2.2.0         
[16] R.utils_0.9.8          R.oo_1.4.1             R.methodsS3_1.0.0     

  

Robert Gentleman <rgentlem@fhcrc.org> wrote:
  Hi Yuan,
Please read the posting guide for this mailing list and follow the 
directions there, and especially provide the output of sessionInfo.

I don't see any problems with these commands, so I suspect you have 
some issues with your installation.

best wishes
Robert

Yuan Jian wrote:
> Hello,
> 
> I have struggled the following simple commands for long time, can you please fix the problem?
> 
> > library("affydata")
>> data(Dilution)
>> pm(Dilution, "1001_at")[1:3, ]
> Error in assayData(object) : 
> no slot of name "assayData" for this object of class "AffyBatch"
> 
> Thanks
> Yuan
> 
> 
> 
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-- 
Robert Gentleman, PhD
Program in Computational Biology
Division of Public Health Sciences
Fred Hutchinson Cancer Research Center
1100 Fairview Ave. N, M2-B876
PO Box 19024
Seattle, Washington 98109-1024
206-667-7700
rgentlem@fhcrc.org


       
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