How to ignore empty values in discrete choice experiment

[#1]

Hello everyone,

I am creating a discrete choice model in JMP. I wrote all the survey answers to the input data. Also, I want to construct subject effects to see how demographical things affect the main attributes. However, there are some null values in demographical data. I want my model to ignore these null values while calculating the result instead of considering them as a category. Is it possible to do it? If yes, how?

Many thanks in advance.

[#2]

Hi,

Sorry that you have not received a reply yet. I think you might need to explain more about what you are trying to do. It is hard to help without a better idea of what the data look like. Also, discrete choice models are quite a niche topic so it might be harder to find help.