Bert, Tim, Karl and Richard, thank you all for your suggestions and help. I will try the R-sig-ecology list.
Karl, I wasn't aware of the RAQSAPI package, but it looked promising. However, when I went to the source of the data it uses, the United States Environmental Protection Agency’s (US EPA) Air Quality System (AQS) Data Mart database, it looks like interactive access to the data is restricted to those who can document a professional agency affiliation. I don't have that. I'll work with the package to see if this is true regarding obtaining the data through it. Thanks for the suggestion. Richard, the Canada study of crematoriums was very useful. Thanks. Thanks, again, all, for your help. -Kevin ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
