

Hi everyone,



While I am running these command lines:

library(oligo)



celFiles <- list.celfiles()

celFiles <- list.celfiles("expressionData", full.names=TRUE)

Data <- read.celfiles(celFiles)



I got this error:



All the CEL files must be of the same type.

Error: checkChipTypes(filenames, verbose, "affymetrix", TRUE) is not TRUE



All CEL files are hg-1.1-st-Array.  May someone let me know how I could
solve this problem.



Thanks,
Jerry

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