Hello

I am encountering an error during RMA of an affybatch.
I have used RemoveProbes.r to remove all S. pombe probesets and 864
individual S.cerevisiae probes from the yeast2 platform.

>data<-ReadAffy()
> data
AffyBatch object
size of arrays=496x496 features (11 kb)
cdf=Yeast_2 (5900 affyids)
number of samples=26
number of genes=5900
annotation=yeast2
notes=
>
> length(pm(data[,1]))
[1] 64688


When I attempt to compute the eset

> eset <- rma(data)
Background correcting
Normalizing
Calculating Expression
Error in rma(data) : length of 'dimnames' [1] not equal to array extent

I assume this has something to do with the removal of individual probes from
the environment, but am not sure and do not know how to remedy this.
Any help appreciated

Omri Yahel
MSc student
School of Biological Sciences
University of Auckland, New Zealand

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