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Hi, there. I am trying to read a file into R, but I got following message Error in file(file, "r") : unable to open connection In addition: Warning message: cannot open file `SwirlSample.txt' . In fact, my file has been already in the current working directory. My R is running on window operation system instead of UNIX. Thanks. Shizhu Zang Department of Biochemsitry Peking

Hi, there. I used the function read.maimages in limma package to analyze the microarray data .but I got following message >RG <- read.maimages(targets$FileName, source="spot") Error in grep(pattern, x, ignore.case, extended, value, fixed) : invalid argument I don't know what is the matter Thanks a lot Regards Shizhu Zang Department of Biochemsitry Peking