[R-sig-Geo] spml and logLik, help!

[Ariel Ortiz-Bobea]

After some digging, I realized the problem is that the log-likelihood is
simply not exported by one of the internal functions (splm:::sperrorlm).

To fix this simply modify that function. After loading splm type:

fixInNamespace("sperrorlm", "splm")

And manually add "ll=LL" as an element to the "return" list at the end of
the function so that it reads:

return <- list(coeff = betas, lambda = lambda, s2 = s2, rest.se = rest.se, 
        lambda.se = lambda.se, asyvar1 = asyvar1, ll=LL)

This LL (i.e. LogLik) object was missing. 

A less elegant solution is to capture the text after running the function
when the option quiet=F.

Hope this saves some time to others.

Cheers.

Ariel



-----
Ariel Ortiz-Bobea
PhD Candidate in Agricultural & Resource Economics
University of Maryland - College Park
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