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The SAS power analysis Macros for an exponential growth curve model - 2009-04-15 - Zhang, Z. & Wang, L.
The macros estimate the power for evaluting parameters in an exponential growth curve model. R=10000 are recommended. In this example, the mean change between the iniital status and the asymptotic level is tested. It is recommended that a single replication of data is first tested to observe the behavior of convergence. The PROC NLMIXED is used here.

The power estimation for the exponential growth curve model can be very slow.
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