I tried to run a Random effect Panel regression and i get this error: Errore in swar(object, data, effect) : the estimated variance of the individual effect is negative >
can you help me trying to understand the problem? (sorry for m bad english) Thanks to everybody -- View this message in context: http://r.789695.n4.nabble.com/Error-in-Random-Effect-Panel-tp4650654.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.