[BioC] Mising data

[Jean Yee Hwa Yang]

Hi Joyce,

Usually, NA's comes from higher background the foreground values.  One
way is not to do local background subtraction before performing
normalization.

e.g.
say dataraw is a marrayRaw object
dataraw at maGb <- dataraw at maRb <- matrix(0,0,0)
datanorm <- maNorm(dataraw)
write.xls(datanorm at maM, file="Norm.xls")

Cheers

Jean

On Wed, 18 Feb 2004, Joyce Gu wrote:

> Hello,
> I am using marrayInput packages to do my data analysis. After I read into my 
> data with read.marrayRaw function. I found that lots of my data is labelled 
> "NA". I use name.Gf="Ch1 Median",name.Rf="Ch2 Median",name.Gb=" Ch1 B 
> Median",name.Rb="Ch2 B Median" command, I am wondering how marrayClass 
> transformed data. Is still M vs A or what.
> I want to normalize my data with this packages, then export to do further 
> analysis with other software.
> 
> Any explanation is greatly appreciated about this algorithm
> 
> Thanks
> 
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