SciencesPo (version 1.3.7)

dHondt: Method D'Hondt

Description

The function calculate the seats allotment in legislative house, given the total number of seats and the votes for each party based on the Victor D'Hondt's method (1878), which is mathematically equivalent to the method proposed by Thomas Jefferson few years before (1792).

Usage

dHondt(parties, votes, seats)

Arguments

parties

A vector containig parties labels or candidates accordingly to the votes vector order.

votes

A vector containing the total number of formal votes received by the parties/candidates.

seats

An integer for the number of seats to be filled (the district magnitude).

Examples

votes <- sample(1:10000, 5)
parties <- sample(letters, 5)
dHondt(parties, votes, 5 )


# Example: 2014 Brazilian election for the lower house in the state of Ceara.
# Coalitions leading by the following parties:

results <- c(DEM=490205, PMDB=1151547, PRB=2449440,
PSB=48274, PSTU=54403, PTC=173151)

dHondt(parties=names(results), votes=results, seats=19)

# The next example is for the state legislative house of Ceara:

votes <- c(187906, 326841, 132531, 981096, 2043217,15061,103679,109830, 213988, 67145, 278267)

parties <- c("PC do B", "PDT","PEN", "PMDB", "PRB","PSB","PSC", "PSTU", "PT do B", "PTC", "PTN")

dHondt(parties, votes , 42)