Sainte_Lague: Sainte-Lague index of disproportionality (SL)

In Relectoral: Electoral Analysis

Description

This index is designed to study the disproportionality of those electoral systems that use the procedure of distribution of seats that has the same name (Sainte-Lague method). It should be noted that this indicator takes into account the relative difference between the seats-votes of each party, as well as that of the system as a whole. The formula used for its calculation is as follows:

SL =sqrt(sum((Vi-Ei)^2*(1/Vi))

for i = 1, 2, …,n vi>0

Usage

Sainte_Lague(votes, seats)

Arguments

votes	It is a vector of integers, containing the votes of all the candidates.
seats	It is a vector of integers, containing the seats obtained by each of the candidates.

Value

Returns the value obtained for the index

Examples

Sainte_Lague(c(3947,3189,1971,466,345,82),c(184,99,44,10,1,0))

Relectoral documentation built on July 2, 2020, 2:31 a.m.