The biggest complaint about nonlin software is the "guessing" of starting values. The future is .
—you should focus on capturing the software's ability to simulate nonlinear responses. If you are using it for pharmacokinetic modeling (e.g., ), the structure will differ slightly. National Institutes of Health (.gov) Standard Report Structure for NONLIN nonlin software
"Nonlin" is shorthand for . In mathematics, a linear system is predictable: if you double the input, you double the output. It’s safe, boring, and easy to understand. The biggest complaint about nonlin software is the