Il giorno mar, 18/07/2006 alle 12.25 -0300, raul sanchez ha scritto: > how can I select the countries of Lat. Am. thank you
hint: add to the data.frame a column with the continental ID so this could be usefull for other needs. hint: ?subset -- Daniele Medri ______________________________________________ [email protected] 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.
