Authors: | Heather Turner, David Firth | ||||
Title: | Bradley-Terry Models in R: The BradleyTerry2 Package | ||||
Abstract: | This is a short overview of the R add-on package BradleyTerry2, which facilitates the specification and fitting of Bradley-Terry logit, probit or cauchit models to paircomparison data. Included are the standard ‘unstructured’ Bradley-Terry model, structured versions in which the parameters are related through a linear predictor to explanatory variables, and the possibility of an order or ‘home advantage’ effect or other ‘contest-specific’ effects. Model fitting is either by maximum likelihood, by penalized quasi-likelihood (for models which involve a random effect), or by bias-reduced maximum likelihood in which the first-order asymptotic bias of parameter estimates is eliminated. Also provided are a simple and efficient approach to handling missing covariate data, and suitably-defined residuals for diagnostic checking of the linear predictor. | ||||
Page views:: 5742. Submitted: 2011-09-16. Published: 2012-05-24. |
|||||
Paper: |
Bradley-Terry Models in R: The BradleyTerry2 Package
Download PDF
(Downloads: 4451)
|
||||
Supplements: |
| ||||
DOI: |
10.18637/jss.v048.i09
|
![]() This work is licensed under the licenses Paper: Creative Commons Attribution 3.0 Unported License Code: GNU General Public License (at least one of version 2 or version 3) or a GPL-compatible license. |