[BioC] Error on se.exprs(sample.ExpressionSet)

[Martin Morgan]

On 04/16/2010 07:39 PM, Peng Yu wrote:
> Hi,
> 
> se.exprs(sample.ExpressionSet) gives me some error. It seems that
> se.exprs is not available. Could you let me know on which object I can
> call se.exprs?

showMethods('se.exprs') reports this correctly -- there are no (Biobase)
classes on which this method is defined. Classes derived from eSet, and
defined in other packages (e.g., AffyBatch, in the affy package), may
have an se.exprs method. A different question is 'what methods are
defined for the data I have?'

Martin

> 
> 
> #########
>> library(Biobase)
> 
> Welcome to Bioconductor
> 
>   Vignettes contain introductory material. To view, type
>   'openVignette()'. To cite Bioconductor, see
>   'citation("Biobase")' and for packages 'citation(pkgname)'.
> 
>> data(sample.ExpressionSet)
>> head(se.exprs(sample.ExpressionSet))
> Error in function (classes, fdef, mtable)  :
>   unable to find an inherited method for function "se.exprs", for
> signature "ExpressionSet"
> Calls: head -> se.exprs -> <Anonymous>
> Execution halted
>> showMethods('se.exprs')
> Function: se.exprs (package Biobase)
> <No methods>
> 
> 


-- 
Martin Morgan
Computational Biology / Fred Hutchinson Cancer Research Center
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