Dear List,

I have a problem using splm package: across various datasets and models, the sphtest function never works when I try to calculate the Hausman test with a model using Maximum Likelihood.
I always receive the following error message:

Error in match.arg(spatial.error) :
  'arg' must be NULL or a character vector

I see that several other people posted the same problem before, but apparently there was not solution proposed on the list:
in September 2011:
https://stat.ethz.ch/pipermail/r-sig-geo/2011-September/012826.html
and in May 2013:
https://stat.ethz.ch/pipermail/r-sig-geo/2013-May/018256.html

Does anyone have a solution?

Thank you very much,


Patrick Meyfroidt
------
F.R.S. - FNRS and
Universit? catholique de Louvain - UCLouvain


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