[EM] Another PR method based on ranked ballots

[Olli Salmi]

At 10:02 -0800 20.3.2003, Forest Simmons wrote:
>Next, for each candidate X in the union of (the members of) F, let A(X) be
>the average of all these ballot vectors that rank X in first place..
>
>Next, for each ballot vector V and each candidate X in the union of F, let
>d(V,A(X)) be the distance from V to A(X) in the Euclidean metric (i.e. the
>root of the sum of squares of the respective component differences).

What about the candidates that have no first preference votes?

Olli Salmi