RE: Placebo-corrected PD models

From:Leonid Gibiansky Subject:RE: [NMusers] Placebo-corrected PD models Date:Fri, 17 May 2002 10:37:11 -0400 Chuanpu, My point was that we need to compare apples to apples: one has to fit the same quantity, R1 in this case, to the same data. Otherwise comparison of objective functions can be misleading. Model with R2 and model 2 are not equivalent in terms of the modeling process, OF, etc., but once you have the solution, the models are equivalent (R1 computed from R2 and from model 2 are identical if the values of the model parameters are the same). Leonid