More flexibility is needed in the models – e.g. IDU is sometimes also a rare category. Goes along with “rare categories” problem. For imputations – the problem is in analysis (i.e. report); We may introduce the possibility to either group all rare categories in a new one (i.e. „Other”) or exclude them from the imputations and add them back at the end In addition this should go with some “error handling” strategy.
More flexibility is needed in the models – e.g. IDU is sometimes also a rare category. Goes along with “rare categories” problem. For imputations – the problem is in analysis (i.e. report); We may introduce the possibility to either group all rare categories in a new one (i.e. „Other”) or exclude them from the imputations and add them back at the end In addition this should go with some “error handling” strategy.
In the report – add back the rare categories