I want to normalize the data series GSE36040 using R.
I have downloaded the data using the code:
the result is a zip file entitled GSE36040_RAW.tar, I unzipped it, so it contains the zipped files of the samples (for example GSM879567_US22502590_251524110570_S01_GE1-v5_95_Feb07_1_2.txt.gz).
I want to read the data in R and normalize it, the readAffy() function gives back this error:
No cel filennames specified and no cel files in specified directory.
I don't know how can I convert my files to CEL files.
I also have used the untar function but it also gives this warning message:
In untar("GSE36040/GSE36040_RAW.tar", exdir = "data") :
‘tar.exe -xf "GSE36040/GSE36040_RAW.tar" -C "data"’ returned error code 1
I would be grateful if someone can guide me on how to open and read my data in R.