Peter Wilkinson <pwilkinson <at> videotron.ca> writes: : : Hi there, : : thanks for the reply. I was expecting what Tony posted. By the way I got : the format for my question out of Introduction to R. So I expected it to : work as in the text, but it turns out .... : : my "list" somehow was not a vector: : : > list[1] : [1] PERH0125 : 44 Levels: PERH0015 PERH0019 PERH0023 PERH0029 PERH0037 PERH0045 PERH0053 : PERH0075 ... PERH0360 : : I did the following: : : > list2 = as.vector(list) : > list2 : [1] "PERH0125" "PERH0315" "PERH0161" "PERH0181" "PERH0229" "PERH0223" : "PERH0243" "PERH0269" : <snip> : : I am not sure what format list was in (looks like factor), but I turned it : into a vector and it worked as expected. I have to go back and see how I : created list in the first place. : : originally I took a row from a data frame, removed NA values, then sorted : it into an order that I wanted (using 'order') .... so I don't know when it : turned into something that looked like factor. Any ?
read.table will read characters in as factors unless you specify otherwise. See ?read.table and the as.is= argument in particular. ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
