NONMEM Users Network Archive

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OMEGA selection

From: Ethan Wu <ethan.wu75>
Date: Wed, 15 Apr 2009 08:47:06 -0700 (PDT)

Dear all,   I am fitting a PD response, and the equation goes like this=
: total response = baseline+f(placebo response) +f(drug response) fir=
st, I tried full omega block, and model was able to converge, but $COV stop=
 failed. To me, this indicates that too many parameters in the model. The=
 structure model is rather simple one, so I think probably too many Etas. =

ment here. Any good reference?
Received on Wed Apr 15 2009 - 11:47:06 EDT

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