[BioC] Re:PLIER wierd Mvs A

[Anthony Bosco]

Hi,

I have just tried the PLIER algorithm and the M vs A
plots look wierd (see attachment). 

R commands

data<-ReadAffy()
eset<-justPlier(data)

m<-eset at exprs[,2]-eset at exprs[,1]
a<-(eset at exprs[,2]+eset at exprs[,1])/2

plot(a,m)


regards


Anthony