From: "Joost DeJongh" <>
Date: Mon, 7 Jun 1999 11:51:17 +0000
Subject: implementation of cosine function

I recently ran into a problem trying to use a cosine-based model for cyclic hormonal levels. In the $PRED block, I defined a cosine model for population data as follows:

DAY is the x-variable (time)
This way, the model cannot obtain an ETA on TMAX.

Any help would be greatly appreciated.

Joost DeJongh, Ph.D.

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