Hi,
I have searched over the last two days to try and sort this problem but unfortunately I cannot find the correct solution. I have a main directory - "Spectra" In this folder I have two subfolders "Normal" and "Case" I am using a package MALDIquant for processing of mass spectrometry data, The following command will open and list all my files from the Normal subfolder (70 files containing spectrums) Spectra <- mqReadBrukerFlex(file.path("Spectra/", "Normal")); How do I add the "Case" folder to the list (another 70 spectra), so that I can then process all the files in the same manner and yet maintain their origin so when I want to do stats analyse on them I can differentiate?? Any help would be great, I am very much a beginner, Brian [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.