Hi All,

I am creating an index which investigates associations between ecological footprint (EF) and healthy life expectancy (HALE) and was instructed: "to avoid the index being excessively driven by differences in ecological footprint, transfer both measures to a relative scale" and then proceed with developing my index.

Right now I have values for my log transformed EF variable "totallog" which range from 0.104 to 3.875 and values for HALE variable "val" ranging from 39.08 to 69.77, for countries in a given year.

I was wondering if anyone had some advice on how to create new variables in stata where the values for both of these variables were on a relative scale with the same range (i.e. say 0-100) to allow for more direct comparison.

Thanks!
Connor