L_Tukey: Disproportionality index. Tuckey's line (LT)
Description
This indicator is also known as the robust bias index. Its value is obtained
by using the slope of the well-known "Tuckey Line" and its use is recommended when there is
a "small" group of parties that behave significantly differently from the rest. This
procedure is qualified as "robust" because the presence of behaviors of certain parties
different from the rest does not substantially alter the line obtained, unlike what happened
when it was used in the least squares criteria to make the regression adjustment.#'
Usage
L_Tukey(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.