Here is the last code that I wrote but it would give me the same problem: I have the matrix mat with n columns mat.1, mat.2 ...mat.n
#To be able to use lapply I convert it to a data.frame: mat <- data.frame(mat) lapply(mat, function, argument of function) It works but I still get for all elements the function applied for the last element. The elements of my results are all the same I don't understand I did exactly as shown on this website: http://www.ats.ucla.edu/stat/r/library/advanced_function_r.htm#lapply -- View this message in context: http://n4.nabble.com/How-to-apply-a-function-on-each-column-of-a-matrix-tp1288436p1288471.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.
