Dear Prof. Bierlaire,
I hope this email finds you well.
I have recently started course on Discrete Choice Modelling and facing some difficulties on survey data. For simulation "Switzerland mode choice" data named "Optima" is used. In that survey data there is a column named "Weight" and I am not understanding how to calculate this data for every individual especially when the variable is more than one. I have attached the data file in excel format which is already in the website for your kind reference.
I would be grateful to you if someone could explain this calculation.