Hi,
I am trying to run panel regression using Fixed and Random effects models. I
am getting the following error message after running the hausman test
>Fmodel=plm(gdp ~ labour+gfcf+oil+coal+gas+hydroel+nuclear+rnwable, model =
"within", data = new.frame,index = c("id"))
>Rmodel=plm(gdp ~ labour+gfcf+oil+coal+gas+hydroel+nuclear+rnwable, model =
"random", data = new.frame,index = c("id"),random.method="amemiya")
>phtest(Fmodel,Rmodel)
>Error in solve.default(dvcov) :
system is computationally singular: reciprocal condition number =
1.76944e-20
I would really appreciate if you could help
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