Hello, I'm coming straight to the point:
I have 65 .txt-Files named "XYZ_1.txt" to "XYZ_65.txt" (each number represents a test subject). I have to open them in Microsoft Excel to see the exact structure. In each of those .txt-files there are reaction time values (in milliseconds) from line 15, column H to line 166, column H for each test subject (and a couple of other data in the other colums of course). My problem is, that I only need the arithmetic mean for all of these reaction times per test subject. --> Again: I have 65 test subjects and according to Excel 152 reaction times for each test subject / in each .txt-file. Is there an easy way to only extract the arithmetic mean for each test subject in an Excel file column? Thanks for your answers! -- View this message in context: http://r.789695.n4.nabble.com/Extracting-arithmetic-mean-for-specific-values-from-multiple-txt-files-tp4635809.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.