RE: Help: oral and ig bioavailability by NONMEM
From: "Piotrovskij, Vladimir [JanBe]" <VPIOTROV@janbe.jnj.com>
Subject: RE: Help: oral and ig bioavailability by NONMEM
Date: Tue, 28 Aug 2001 12:37:24 +0200
Weijiang,
I agree with Rik: THETA(9) seems to be redundant. Another potential problem:
too few individuals. You cannot estimate so many random effects having only
6 subjects. Fixed effect estimates can also be affected. I think you have to
fit each subject separately. Interoccasion variability should be taken into
account, too.
Best regards,
Vladimir
Centre for Human Drug Research (CHDR)
Zernikedreef 10, 2333CL Leiden, Netherlands
tel +31 (0) 71 5246417; fax +31 (0) 71 5246499
email rs@chdr.nl <mailto:rs@chdr.nl> ; http://www.chdr.nl
http://www.chdr.nl