This question is more appropriate for the bioconductor list <bioconductor at="" stat.math.ethz.ch="">. I have cc'ed there. Any time you ask a question, you need to give the output of sessionInfo(), so please give us that output. Best, Jim On 8/4/10 9:08 AM, mandova wrote: > Hi!I'm doing a little data importing from .cel files, > >> setwd("/home/mandova/celfiles") >> mydata<-ReadAffy() > Error in sub("^/?([^/]*/)*", "", filenames, extended = TRUE) : > unused argument(s) (extended = TRUE) > > > Then I tried >> filenames<-paste("GSM",c(seq(138597,138617,1)),".cel",sep="") >> filenames<-as.character(filenames) >> filenames > > [1] "GSM138597.cel" "GSM138598.cel" "GSM138599.cel" "GSM138600.cel" > [5] "GSM138601.cel" "GSM138602.cel" "GSM138603.cel" "GSM138604.cel" > [9] "GSM138605.cel" "GSM138606.cel" "GSM138607.cel" "GSM138608.cel" > [13] "GSM138609.cel" "GSM138610.cel" "GSM138611.cel" "GSM138612.cel" > [17] "GSM138613.cel" "GSM138614.cel" "GSM138615.cel" "GSM138616.cel" > [21] "GSM138617.cel" > >> mydata<-ReadAffy(compress=FALSE,filenames=filenames) > Error in sub("^/?([^/]*/)*", "", filenames, extended = TRUE) : > unused argument(s) (extended = TRUE) > > Same error! Could you please help me understand the error message? Thx!!! > -- James W. MacDonald, M.S. Biostatistician Douglas Lab University of Michigan Department of Human Genetics 5912 Buhl 1241 E. Catherine St. Ann Arbor MI 48109-5618 734-615-7826 ********************************************************** Electronic Mail is not secure, may not be read every day, and should not be used for urgent or sensitive issues