Estimation Problems: 2nd Order PQL - logistic

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Joined: Thu Feb 09, 2012 9:10 am

Estimation Problems: 2nd Order PQL - logistic

Post by carlabologna » Thu Feb 09, 2012 9:24 am

Hi there!
I am running a 3 level logistic model and, as suggested by literature, I am running it firstly estimating with 1st Order MQL then, when the model is completely estimated in that way, I should switch to 2nd Order PQL (by clicking on 'nonlinear' button, etc....) BUT when I click on 2nd order, PQL then MORE, lots of iterations start and the software it is not able to estimate, the covariates never turn in green but they continue to change numbers being always the end, when hundreds iterations are done and the model is not estimated (always blue and changing) I click and stop and clear.... :cry: :?: :cry: Any idea? Thanks, C. :?

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