On Tue, 30 Aug 2011, David Winsemius wrote:
I think you need to go back and do your input operations again with sep="|"
David, Yes, that's better. I did not know of the sep option. The new results:
str(chemdata)
'data.frame': 14886 obs. of 4 variables: $ site_id : Factor w/ 148 levels "BC-0.5","BC-1",..: 104 145 126 115 114 128 124 2 3 3 ... $ sample_date: Factor w/ 1012 levels "1980-03-01","1980-05-01",..: 432 410 423 405 398 408 401 360 366 407 ... $ param : Factor w/ 8 levels "Arsenic","Calcium",..: 1 1 1 1 1 1 1 1 1 1 ... $ quant : num 0.06 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 ... Now I can work on the commands I need. Many thanks, Rich ______________________________________________ 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.
