thanks Berend, that's a very smart to do it :) ----- Anna Lippel -- View this message in context: http://n4.nabble.com/Error-on-using-lag-function-tp1399935p1415584.html Sent from the R help mailing list archive at Nabble.com.
______________________________________________ [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.

