Hi Andreas
In this case, the code I am familiar with under $PK is:
MTIME(1)=THETA(..)
TK120=THETA(..) ; rate constant until MTIME
TK121=THETA(..) ; rate constant after MTIME
K12=TK120*(1-MPAST(1)) + TK121*MPAST(1) ; MPAST(1) is 0 until MTIME(1)
whereupon it becomes 1
I am not sure what MTDIFF does, but I have not observed any difference
when I set it to 1 in the code.
Hope this helps this time :-))
Emmanuel
>>> Steingötter Andreas 07/28/10 3:53 PM >>>
Emmanuel,
Thanks for your suggestions. I played around a bit, but it becomes
obvious that the actual event is reflected in the data at some unknown
later point in time which I cannot predict and which also depends on the
Individual. Therefore I reckon I need to model an event time using MTIME
instead of your much easier approaches.
Regards
Andreas
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