Message-ID: <1317523419304-3864243.post@n4.nabble.com>
Date: 2011-10-02T02:43:39Z
From: yehengxin
Subject: Poor performance of "Optim"
In-Reply-To: <1317518250373-3864133.post@n4.nabble.com>
Thank you for your response!
But the problem is when I estimate a model without knowing the true
coefficients, how can I know which "reltol" is good enough? "1e-8" or
"1e-10"? Why can commercial packages automatically determine the right
"reltol" but R cannot?
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