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Good afternoon,

I'm doing a multilevel logistic regression, and when I want the Wald Test this message appears:

function #1 contains no non-zero elements.

I don't understand what's happen here. I REALLY need your help

Also, I want apologize for my English level and for didn't introduce me, but I need help quickly.

See you soon,

Zaida Parra

It sounds like you may have made an error when filling in the dialogue to calculate this. I suggest that you look at page 127 of the MLwiN user guide (http://www.bristol.ac.uk/cmm/media/soft ... al-web.pdf) which provides a worked example.

Thank you for your fast answer! Now I read that guide and I will tell you if it works.

The warning stills appears, there is any problem with data, maybe?

Could you post what settings you are using (for example by providing a screenshot)?

I'm working with a nonlinear estimation (PQL-2) and the estimation control is non-parametric bootstrap with the bias corrected.

Could you also provide the inputs that you are entering into the Intervals and tests window?

Talking with my master mates, they tell me that the free version have bugs, and it don't work well. There is the problem?

I am not currently aware of any bugs related to this. Looking at the screenshot you provided is appears that you have not specified the test that you want to perform. To do this you need to change some of the zeros to match the required test. The inputs all being zero would match up with the error message that you are receiving.

I don't understand. Could you explain me like if I was a child?