[BioC] Re: read.GenePix() function

Gordon Smyth smyth at wehi.edu.au
Thu Nov 6 09:08:40 MET 2003

This can be done by providing a user-specified function to the wt.fun 
argument of read.maimages() in the limma package. Just use something like

mywtfun <- function(dat) as.numeric( (dat$RF>dat$RB+2*dat$RBSD) & 
RG <- read.maimages(files, 


> > I want to specify these two columns is because I want to write a
> > function to filter spots whose RF and GF are less than RB+2*RBSD and
> > GB+2*GBSD. Do you know an approach I can do that?

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