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ElectDecomp: Decomposition of Seats-to-Votes Distortion in Multimember Elections

Decomposes the seat-to-vote distortion for every party (individual party bias or individual party deviation from proportional representation) into segments that can be attributed to separate causes for the party infra or over-representation: the electoral system effect (separating the mean and the variance effect within it) and the population effect (separating malapportionment and unequal participation effect within it). It works on (single tired) districted electoral systems with any number of seats per district. In addition, the package aggregates the individual party distortion into an index of deviation from proportionality (the Losemore-Hanby index) whose value is also decomposed into segments attributed to the major causes of deviation from proportionality (plus the interactions among them).

Version: 0.0.1-1
Published: 2024-07-26
DOI: 10.32614/CRAN.package.ElectDecomp
Author: Alberto Penadés ORCID iD [aut], Jose M. Pavía ORCID iD [aut, cre]
Maintainer: Jose M. Pavía <jose.m.pavia at uv.es>
License: EPL
NeedsCompilation: no
CRAN checks: ElectDecomp results

Documentation:

Reference manual: ElectDecomp.pdf

Downloads:

Package source: ElectDecomp_0.0.1-1.tar.gz
Windows binaries: r-devel: ElectDecomp_0.0.1-1.zip, r-release: ElectDecomp_0.0.1-1.zip, r-oldrel: ElectDecomp_0.0.1-1.zip
macOS binaries: r-release (arm64): ElectDecomp_0.0.1-1.tgz, r-oldrel (arm64): ElectDecomp_0.0.1-1.tgz, r-release (x86_64): ElectDecomp_0.0.1-1.tgz, r-oldrel (x86_64): ElectDecomp_0.0.1-1.tgz

Linking:

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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.