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Okay great, I will look into this further. Thanks very much for all your help Chris!

Thank you for all your help so far Chris!

When aborting the macro and running the model in MLwiN via start I get the following error message: ‘SSP matrix for the random part has gone negative definitive - a reconstruction to the nearest non-negative form has been used.’

When I run the model using ...

Thanks again for your help Chris!

I have now re-run the commands without the nopause option and have swapped out the 2 lines of code for those you suggested. When I go into MLwiN to look at the hierarchy viewer it appears as follows:

Model Hierarchy.png

As far as I can tell, the sorting has ...

Hi Chris,

Thanks for your prompt reply and for your suggestions.

I have tried switching out the lines of code and Stata is still returning the 'The data must be sorted according to the order of the model hierarchy: pano idnew idnew. An error occurred when mi estimate executed runmlwin on m=1 ...

Hi,

I am currently trying to use runmlwin to estimate a 2-level nominal response model (on multiply imputed data, 10 imputations, mlong format) in Stata but am running into problems. The model dependent variable is comprised of three, un-ordered categories - voting Labour, voting Conservative or ...