Sorry guys,

I have 8 CEL files and I am going to perform variance stabilization on them. Then I did like below

setwd("E:/Affy data")
library(affy)
library(vsn)

celFiles <- list.celfiles()
affyraw=ReadAffy(filenames = celFiles)
affyraw.vsn2=vsn2(affyraw)
vsn2: 506944 x 8 matrix (1 stratum). Please use 'meanSdPlot' to verify the fit.

but I could not figure out how I can use resulted matrix as a class for vsn2 function. I read vignette and vsn manual but the used data sets is kidney and I could not adopt on my data sets.

If you were me, how you continue your normalization and summarization?

Please don't suppose this a lazy post because really I could not get myself while I have to do this job