[BioC] limma how to ignoring background

[Guoneng Zhong]

Hi,

My custom image result files do not have background readings.  But limma's
read.maimages ask me for it.  How do I get around this?  I tried lying to it by
giving it some random numeric column in the result file, but am worried that
when I do normalization or lmFit it will take that fake background into
consideration.

Any advice would be appreciated.

Thanks,
g

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