Hi All

First of all, thanks for helping with normalize.quantiles function.

I am trying to normalize intensity data from 4 different CEL files using
normalize.quantiles function. However I understand that this function needs
a matrix of data. I need to somehow try to map the intensity data from 4 CEL
files to the same probe position and put it in a new file before
normalizing. I was looking into BufferedMatrix.read.celfiles function. I
have two questions:
1. I did load the BufferedMatrix package and the Affy package, however the R
program is nor recognizing the function.
2. Is there any other way to achieve data normalization from different data
sources. Please note that I was unable to find CDF file for the tiling array
we used(GeneChip Human Tiling 2.0R array set). So I am thinking
using rma may not work without CDF file.

Thanks.
- Radhika

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