Hi,
I use Stata 16.1 and I need to run a 3-level Zero Inflated Negative Binomial regression. I have seen some previous answers suggest using "gllamm"
Based on the "gllamm" manual in Stata I wrote the following code:
meglm y x1, x2, x3....xn || lev3: || lev2:, family(nbinomial)
After 11 iterations the log likelihood stops changing.
Does anyone know if I am doing something wrong with the code and how I can get around this.
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