On Feb 28, 2013, at 4:30 AM, Sahana Srinivasan wrote: > Hello :) > I'm just starting out with R and would appreciate your help with a couple > of problems I am running into.
You do need to work through the examples in "Introduction to R" > I have used Sys.glob to get a list of all filenames having a particular > file extension (in my case, *.txt) When posting to rhelp you should offer code as well as a description. > I would now like to use this list in the following manner: I would like to > use each filename from the list and open that file into a tab separated > matrix and proceed. ?read.delim "Matrix" is sometimes used as a generic English word describing a regular arrangement of data. When discussing the R language, you should use it only when talking about a specific sort of data-object which will return TRUE for: is.matrix(object). And then depending on whether you actually want a matrix or will be satisfied by the data-frame object that read.delim would have returned, you may or may not need: ?data.matrix > How can I go about iterating through each filename in the list and then > opening each of the files? lapply( fil_list, read.delim) > I believe as.matrix can be used to open the txt file as a table, is that > correct? No. Please read the help page for `as.matrix` more carefully. It does not take a file or connection argument. > > I know these are beginner queries but I would love your help. Thank you in > advance :) -- David Winsemius Alameda, CA, USA ______________________________________________ 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.
