ranjana Soni

2020-08-14 17:55:50 UTC

Dear All,

I am trying to run a MNL model on my data. However I am getting the results with the following error stated in the beginning . Please guide if this needs to be ignored and if not , how to rectify this. The SS is 287.

Thanks in advance,

Ranjana

Warnings

There are 297 (65.3%) cells (i.e., dependent variable levels by subpopulations) with zero frequencies.

Unexpected singularities in the Hessian matrix are encountered. This indicates that either some predictor variables should be excluded or some categories should be merged.

The NOMREG procedure continues despite the above warning(s). Subsequent results shown are based on the last iteration. Validity of the model fit is uncertain.

I am trying to run a MNL model on my data. However I am getting the results with the following error stated in the beginning . Please guide if this needs to be ignored and if not , how to rectify this. The SS is 287.

Thanks in advance,

Ranjana

Warnings

There are 297 (65.3%) cells (i.e., dependent variable levels by subpopulations) with zero frequencies.

Unexpected singularities in the Hessian matrix are encountered. This indicates that either some predictor variables should be excluded or some categories should be merged.

The NOMREG procedure continues despite the above warning(s). Subsequent results shown are based on the last iteration. Validity of the model fit is uncertain.