Characteristics
In mathematics, and more specifically in algebraic topology and polyhedral combinatorics, the Euler characteristic (or Euler number, or Euler–Poincaré characteristic) is a topological invariant, a number that describes a topological space's shape or structure regardless of the way it is bent.
A study of characteristics of U.S. presidential candidate supporters finds, among other things, preference for Trump was predicted by lower Openness and higher Volatility, but lower Compassion and higher Industriousness. Support for Biden was predicted by higher Compassion, Intellect, and Withdrawal