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From: Lisa on 12 Mar 2010 12:42
Dear all,

I'm normalising some microarray data using rmasummary in the Bioinformatics Toolbox. When I do so, I get complex numbers in the resulting expression matrix, even using the example provided by matlab (help rmasummary):

load prostatecancerrawdata
backadjData = rmabackadj(pmMatrix);
normData = quantilenorm(backadjData);
expressionData = rmasummary(probeIndices, normData);

Is this correct?...!

Lisa
From: Lucio Cetto on 15 Mar 2010 17:04
Lisa
I get isreal(expressionData)=1 with the example provided. I checked it with 10a and 9b. What version are you using?
Lucio

"Lisa " <lisa(a)dcs.gla.ac.uk> wrote in message <hndudj$hnm$1(a)fred.mathworks.com>...
> Dear all,
>
> I'm normalising some microarray data using rmasummary in the Bioinformatics Toolbox. When I do so, I get complex numbers in the resulting expression matrix, even using the example provided by matlab (help rmasummary):
>
> load prostatecancerrawdata
> backadjData = rmabackadj(pmMatrix);
> normData = quantilenorm(backadjData);
> expressionData = rmasummary(probeIndices, normData);
>
> Is this correct?...!
>
> Lisa
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