plm(): observations not used for modelling
Thank you for your help. That's an interesting point, I haven't thought about that. Altough I would find it strange that I get a model, where just some observations are missing, if the problem is due to invalid variable names. That's the first thing I will try to change. -- View this message in context: http://r.789695.n4.nabble.com/plm-observations-not-used-for-modelling-tp4648571p4648766.html Sent from the R help mailing list archive at Nabble.com.