avoiding when ETA()=0

From: Kazimierz Subject: [NMusers] avoiding when ETA()=0 Date:Tue, 11 Feb 2003 17:52:43 +0100 Dear NM users, I would like test some algorithms with ETA(). For example: (arithmetic expression)/(ABS(ETA(1)) + ABS(ETA(2))). My question is When ETA()=0 during the run (FOCE, INTERACTION)? I tryed adding a small mumber (0.1E-06) - but it caused great gradient values. I shoul greatly appreciate for indicating me a way for avoiding sytuations when particular ETA's=0 (testing ICALL?). Kazimierz H. Kozlowski, Pharm.D. The Children's Memorial Health Institute Laboratory of Pharmacokinetic Warsaw, Poland E-mail: khkoz@czd.waw.pl