Displaying 1 result from an estimated 1 matches for "tp2133938p2133942".
2010 May 07
2
problem in using optim
Dear R users,
When I was trying to use the function *optim* to get the MLEs, quite a few
warning messages showed up as below:
Warning in log(psi * lam) : NaNs produced
I am just wondering what does this mean? Was it something wrong with my
likelihood function or was it sth wrong with the data?
Thanks in advance.
Carol Gao
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