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Hi all,

I am running random effects models in MARK 6.1 and I got a "warning" message: "error number 2 from VA09AD optimization routine".

However, some results have been added to the browser.
What is that error/warning message about and can I trust the results despite this message?

Thank you very much.

Diego

Probably better not trust the results. You can check the gradient to see what parameters are problematic. But, you should start the model with different initial values, plus consider whether the model is too complex for the amount of data you have.

Gary