Who can assist me on %NLINMIX macro for a nonlinear split-plot design modelling with the WP & SP as variance components. The main aim is to compare the OLS & EGLS estimated parameters. For the EGLS, the variance components has to be estimated using ANOVA, MLE & REML.

I run a SAS version 9.4 but the %NLINMIX don't run on it. Please I really need help. This is seriously frustrating my life & holding my progress to graduation.

I will be very grateful for assistance from anyone.

Email: ikwuoche8@gmail.com