repolr swMATH ID: 7133 Software Authors: Parsons, Nick R.; Costa, Matthew L.; Achten, Juul; Stallard, Nigel Description: R package repolr: Repeated Measures Proportional Odds Logistic Regression. Repeated measures proportional odds logistic regression analysis of ordinal score data in the statistical software package R. The widely used proportional odds model is developed for correlated repeated ordinal score data, using a modified version of the generalized estimating equation (GEE) method for model fitting for a range of working correlation models. The algorithm developed estimates the correlation parameter, by minimizing the generalized variance of the regression parameters at each step of the fitting algorithm. Methods for parameter estimation are described for the widely used uniform and first-order autoregressive correlation models, for data potentially recorded at irregularly spaced time intervals. A full implementation of the algorithm (repolr) in the R statistical software package, that both tests the assumption of proportional odds and accommodates missing data, is described and applied to a clinical trial of post-operative treatment, after rupture of the Achilles tendon and a study of patient pain response after hip joint resurfacing. Homepage: http://cran.r-project.org/web/packages/repolr/index.html Source Code: https://github.com/cran/repolr Dependencies: R Related Software: R; geepack; multgee; SAS; PROC GENMOD; SPSS; CopulaModel; MICE; catdata; VineCopula; nlme; CRTgeeDR; wgeesel; robust; PMM; PoisNor; VGAM; gnm; weightedScores; mprobit Cited in: 11 Publications Standard Articles 1 Publication describing the Software, including 1 Publication in zbMATH Year Repeated measures proportional odds logistic regression analysis of ordinal score data in the statistical software package R. Zbl 1452.62840Parsons, Nick R.; Costa, Matthew L.; Achten, Juul; Stallard, Nigel 2009 all top 5 Cited by 34 Authors 2 Colosimo, Enrico Antonio 2 Parsons, Nick R. 1 Achten, Juul 1 Amorim, Leila D. A. F. 1 Baghfalaki, Taban 1 Costa, Matthew L. 1 da Silva, José Luiz Padilha 1 da Silva, Nívea B. 1 De Baets, Bernard 1 Demarqui, Fábio Nogueira 1 Edler, Lutz 1 Edmondson, Rodney N. 1 Ganjali, Mojtaba 1 Gilmour, Steven G. 1 Heller, Leo 1 Inan, Gul 1 Lee, Jaewon 1 Li, Zheng 1 Mittlböck, Martina 1 Molenberghs, Geert 1 Nikoloulopoulos, Aristidis K. 1 Niland, Joyce C. 1 Nooraee, Nazanin 1 Sefidi, Saeide 1 Stallard, Nigel 1 van den Heuvel, Edwin R. 1 Verwaeren, Jan 1 Victor, Norbert 1 Waegeman, Willem 1 Wang, Ming 1 Xu, Cong 1 Xue, Yuan 1 Yucel, Recai M. 1 Zhang, Lijun all top 5 Cited in 7 Serials 4 Computational Statistics and Data Analysis 2 Journal of Applied Statistics 1 Metron 1 Communications in Statistics. Simulation and Computation 1 Journal of Statistical Computation and Simulation 1 Statistical Modelling 1 Chilean Journal of Statistics Cited in 3 Fields 11 Statistics (62-XX) 2 Numerical analysis (65-XX) 1 Computer science (68-XX) Citations by Year