Cyclic Coordinate Descent for Logistic, Poisson and Survival Analysis R package Cyclops version 3.7.1 CRAN Task View: Survival (https://CRAN.R-project.org/view=Survival) This model fitting tool incorporates cyclic coordinate descent and majorization-minimization approaches to fit a variety of regression models found in large-scale observational healthcare data. Implementations focus on computational optimization and fine-scale parallelization to yield efficient inference in massive datasets. Please see: Suchard, Simpson, Zorych, Ryan and Madigan (2013) <doi:10.1145/2414416.2414791>. Software Depends: R (>= 3.5.0) Imports: rlang, Matrix, Rcpp (>= 0.12.12), Andromeda, dplyr, methods, survival, tidyr, bit, bit64 LinkingTo: Rcpp, RcppEigen (>= 0.3.2) Suggests: testthat, readr, MASS, gnm, ggplot2, microbenchmark, cmprsk, boot, rsample Marc A. Suchard <msuchard@ucla.edu> Comprehensive R Archive Network (CRAN) Marc A. Suchard [aut, cre], Martijn J. Schuemie [aut], Trevor R. Shaddox [aut], Yuxi Tian [aut], Jianxiao Yang [aut], Eric Kawaguchi [aut], Sushil Mittal [ctb], Observational Health Data Sciences and Informatics [cph], Marcus Geelnard [cph, ctb] (provided the TinyThread library), Rutgers University [cph, ctb] (provided the HParSearch routine), R Development Core Team [cph, ctb] (provided the ZeroIn routine) Apache License 2.0 2026-05-27 application/tgz https://CRAN.R-project.org/package=Cyclops doi:10.32614/CRAN.package.Cyclops