I’m running this model
genlinmixed /fields target=ngrants/target_options distribution=poisson link=log/
fixed effects=wave cohort use_intercept=true/
random use_intercept=true effects=wave subjects=rid
covariance_type=unstructured.
I’m getting this message
Warnings

glmm: There is at least one invalid record in the last iteration. A record is invalid if there are errors in computing the inverse LOG link function, the loglikelihood, the gradient,
or the Hessian matrix in the iterative process. No output will be displayed.

Execution of this command stops.

I’m confused by the “at least one invalid record” statement. I’d like to know what that statement means because it seems different,
implies a different problem, from saying that “X” matrix is nonpositive definite.
Thanks, Gene Maguin
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