Re: [NMusers] distribution assumption of Eta in NONMEM

2010-05-29 Thread Nick Holford
Bob, Thanks for pointing out that one cannot use NONMEM to describe the Cauchy distribution. Presumably this explains why we dont seem to have many physicists on nmusers :-). The normal assumption for NONMEM simulation seems to be well accepted so no simulated spectral lines I'm afraid. How

RE: [NMusers] distribution assumption of Eta in NONMEM

2010-05-29 Thread Mats Karlsson
Dear Ethan, If you want to try a nonparametric method, you can do that already in NONMEM, using $NONPARAMETRIC. If you worry about distributional assumptions of your ETAs having an impact on your model or your model derived decisions, this is often a good procedure. Results that agree between $

RE: [NMusers] distribution assumption of Eta in NONMEM

2010-05-29 Thread Eleveld, DJ
I'd like to interject a slightly different point of view to the distributional assumption question here. When I hear people speak in terms of the “distribution assumptions of some estimation method” I think its easy for people to jump to the conclusion that the normal distribution assumptio