Question: RMA problem in affy package
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gravatar for Nitin
4.5 years ago by
Nitin140
Germany
Nitin140 wrote:

Hello,

I wrote following R code to analyze affymeterix microarray data 

library(BiocGenerics)

library(methods)

library(Biobase)

library(affy)

library(limma)

library(statmod)

library(AnnotationDbi)

library(DBI)

targets <- readTargets ("affy_targets.txt")

data <- ReadAffy(filenames=targets$FileName)

eset <- rma(data)

pData(eset) 

But at this step while executing showed following error

Error in function (classes, fdef, mtable) : 
  Unable to find an inherited method for function ‘rma’ for signature ‘"AffyBatch"’

I am using this code from past 1 year with R 2.15.2 (now also I have used same version) ​ which worked perfectly all the time. But today it ran into error..

Just not able to resolve this :(

Can anybody please help

Thanks,

Nitin

R • 1.8k views
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