importing data
On Fri, Jan 25, 2013 at 6:11 AM, Ray Cheung <ray1728 at gmail.com> wrote:
Dear Michael, Thanks for your codes. However, lapply does not work in my case since I've some files missing in the data (say, the file data101.dat). Do you have any suggestions on this?? Thank you very much.
You could simply add a test using file.exists() but I'm not sure what you want to do with the M matrix then -- omit the slice (so the others are all shifted down one) or fill it entirely with NA's. Michael