Dear community,
I am trying to run a spatial panel random effects SEM model using splm package on a balanced spatial panel of N = 2472 and T = 4, and weights are based on k = 6 nearest neighbors. I encounter this error, which I can't find anything about in the documentation or online.
spml(formula = mx.standard ~ I.score,?
? ? ? ? ? ? ? ? ? ? ? ? ?data = analysis.subset,
? ? ? ? ? ? ? ? ? ? ? ? ?listw = listw.wgts,
? ? ? ? ? ? ? ? ? ? ? ? ?effect = "individual",
? ? ? ? ? ? ? ? ? ? ? ? ?model = "random",?
? ? ? ? ? ? ? ? ? ? ? ? ?lag = FALSE,
? ? ? ? ? ? ? ? ? ? ? ? ?spatial.error = "b",
? ? ? ? ? ? ? ? ? ? ? ? ?index = c("Group", "Year"))
Error in .C64("aplsb1", SIGNATURE = c(SS$signature, SS$signature, "double",??:
??NAs in argument 7 and 'NAOK = FALSE' (dotCall64)
Unlike the same specification but with fixed effects (with model = "within" argument), the one above takes a long while to run until it crashes.?As far as I can tell, there are no memory issues.
An alternative spatial random effects using spgm() command runs OK, as do non-spatial fixed and random effects models using plm(). For the one above I could use spgm(), but I would prefer to keep all my models in the maximum likelihood estimation for consistency.
Any clarifications as to the nature of the error are welcome.?
Thank you.
Denys Dukhovnov