Thanks Natasha, Rainer and David. Your support allow me to solve the issue with the factor number.
Sincerely Sandro -- View this message in context: http://r.789695.n4.nabble.com/How-to-convert-factors-to-numbers-tp4498828p4501727.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
