1. 2011-04-14 Re: [R] question about optim r-help chirine wolley 2. 2011-04-12 Re: [R] question about optim r-help Ben Bolker 3. 2011-04-12 [R] question about optim r-help chirine wolley 4. 2003-10-31 Re: [R] question about optim r-help Roger D. Peng 5. 2003-10-31 [R] question about optim r-help Mikyoung Jun