Operations Research topics: SAS/OR,
SAS Optimization, and SAS Simulation Studio

estimation in proc nlmixed?

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estimation in proc nlmixed?

I'm quite new to proc nlmixed, but I think that it might be appropriate and very useful for a certain nonlinear regression problem.

I have received parameter estimates that seem reasonable. I have included one random (normally distributed) variable in my non-linear function. Now, I'd like to get an estimate of the function with a confidence interval. I've tried the predict statement, but it seems that it yields results that does not follow the function I modeled in the first place.

When I try to use the estimate statement, I get the following Error note in the Log:
"ESTIMATE statement expressions are not allowed to depend on random effects." But why is the proc then called Mixed???

Anyone more experienced that could help out?
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