Hi, I am trying to remove probes called A (absent) in all my microarray
samples.
I am trying to get the p-values for the probes across all samples so I can
use genefilter to create a mask and select the present genes. However, I get
the following error:

> data<-ReadAffy()
> rawcalls<-mas5calls(data)
Getting probe level data...
Computing p-values
Making P/M/A Calls
> se.exprs(rawcalls)
Error in function (classes, fdef, mtable)  :
  unable to find an inherited method for function "se.exprs", for signature
"ExpressionSet"

se.exprs is supposed to give me the p.values, isn't it?

Help is much appreciated, thanks,

-- 
Hernando Martínez Vergara

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