[BioC] Rat Gene 1.0 ST

[Germán González]

Hi everybody!

I'm a beginner in the analysis and interpretation of microarray data. I've been working with a Affymetrix's GeneChip® Rat Gene 1.0 ST Array and I have a doubt
about the image that you get when using the command "image". There's two holes in the middle of the image, is this normal?

Regards
Germán

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