[R] plm – tests of poolability – error: insufficient number of observations

Cecilia Carmo cecilia.carmo at ua.pt
Thu Dec 10 11:53:01 CET 2009


Hi everyone!

I’m running the pooltest in plm package, like this
pooltest(cstfin12~lmaccdiscrz+lcobjur+lliq+lcollateral+ldimensao, 
data = dados3,
model = "within")

But I got the following error:
Error in FUN(X[[1L]], ...) : insufficient number of 
observations

My data is an unbalanced panel with 20907 observations 
(6971 individuals and years 2001 to 2007).   This is not 
enough? Could anyone help me?

Cecília Carmo (Universidade de Aveiro – Portugal)




More information about the R-help mailing list