Superefficient Estimation of Future Conditional Hazards Based on Marker Information R package HQM version 2.1 Provides univariate and indexed (multivariate) nonparametric smoothed kernel estimators for the future conditional hazard rate function when time-dependent covariates are present, a bandwidth selector for the estimator's implementation and pointwise and uniform confidence bands. Methods used in the package refer to Bagkavos, Isakson, Mammen, Nielsen and Proust-Lima (2025) <doi:10.1093/biomet/asaf008>. Software Depends: R (>= 3.5.0) Imports: stats, utils, survival, pec, nlme, JM Dimitrios Bagkavos <dimitrios.bagkavos@gmail.com> Comprehensive R Archive Network (CRAN) Dimitrios Bagkavos [aut, cre], Alex Isakson [ctb], Enno Mammen [ctb], Jens Nielsen [ctb], Cecile Proust-Lima [ctb] GPL (>= 2) 2026-03-26 application/tgz https://CRAN.R-project.org/package=HQM doi:10.32614/CRAN.package.HQM