Dear experts, i want to use nlme or plm to analysis mixed effect model, my data has the format :
city year area y x 1 2010 A 1.2 2 1 2011 A 3 3 2 2010 A 5 4 2 2011 A 2.1 1.8 3 2010 B 1.7 2 ........ I want to know does y has relationsheep with x? how to use nlme or plm to do the task? the two packages seems does not have viggnette to guide me ? Does anyone happen to know ? -- PO SU mail: desolato...@163.com Majored in Statistics from SJTU ______________________________________________ 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.