[R] Error in Random Effect Panel

[Hard Core]

i found this on the web, ran it on R but i always get the same error ... any
advices? i don't know how to slve this 

https://r-forge.r-project.org/scm/viewvc.php/pkg/R/ercomp.R?view=markup&root=plm



--
View this message in context: http://r.789695.n4.nabble.com/Error-in-Random-Effect-Panel-tp4650654p4650731.html
Sent from the R help mailing list archive at Nabble.com.