A utility function to print information on final iteration in
gnm fit, intended for use when
gnm has not converged.
gnm has not converged within the pre-specified maximum
number of iterations, it may be because the algorithm has converged to
a non-solution of the likelihood equations. In order to determine
appropriate action, it is necessary to differentiate this case from
one of near-convergence to the solution.
exitInfo prints the absolute score and the corresponding
convergence criterion for all parameters which failed to meet the
convergence criterion at the last iteration. Clearly a small number of
parameters with scores close to the criterion suggests
Vargas, M, Crossa, J, van Eeuwijk, F, Sayre, K D and Reynolds, M P (2001). Interpreting treatment by environment interaction in agronomy trials. Agronomy Journal 93, 949–960.
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