Dear List,

I have a problem.

I want to get the information about the Hgu133_Plus2 as follow,

My interest is which probes are included in each probesets? where is the
location of these probes (x, y) in the microarray?

I know all the information are in Hgu133_Plus2 cdf file.

My problem is how I can extract these information out of this cdf file in R?

First step, like making a table:

probests1   probe1 x1  y1
                   probe2 x2  y2
                   probe3 x3  y3
                   probe4 x4  y4
...
...
probests2   probe1 x1  y1
                   probe2 x2  y2
                   probe3 x3  y3
                   probe4 x4  y4
...
...
probests54675   probe1 x1  y1
                           probe2 x2  y2
                           probe3 x3  y3
                           probe4 x4  y4

in further step, how I can extract the intensity for each probe in .cel file
of each sample?
probests1   probe1 x1  y1  intensity1
                   probe2 x2  y2  intensity2
                   probe3 x3  y3  intensity3
                   probe4 x4  y4  intensity4
...
...

If anyone know how I can do program in R and get this table for each sample
(array)?

Many thanks in advance.

Bests,

Meiyin

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