Utilities for Quantiles R package Qtools version 1.6.0 CRAN Task View: MissingData (https://CRAN.R-project.org/view=MissingData) Functions for unconditional and conditional quantiles. These include methods for transformation-based quantile regression, quantile-based measures of location, scale and shape, methods for quantiles of discrete variables, quantile-based multiple imputation, restricted quantile regression, directional quantile classification, and quantile ratio regression. A vignette is given in Geraci (2016, The R Journal) <doi:10.32614/RJ-2016-037> and included in the package. Software Depends: R (>= 3.5.0) Imports: boot, conquer, corpcor, glmx, graphics, grDevices, gtools, MASS, Matrix, np, numDeriv (>= 2016.8-1), quantdr, quantreg, Rcpp (>= 0.12.13), stats, utils LinkingTo: Rcpp, RcppArmadillo Suggests: knitr, mice, rmarkdown, survey Marco Geraci <marco.geraci@uniroma1.it> Comprehensive R Archive Network (CRAN) Marco Geraci [aut, cph, cre] (ORCID: <https://orcid.org/0000-0002-6311-8685>), Alessio Farcomeni [ctb] (Contributions to midrq and qrr code, ORCID: <https://orcid.org/0000-0002-7104-5826>), Cinzia Viroli [ctb] (Contributions to dqc code, ORCID: <https://orcid.org/0000-0002-3278-5266>) GPL (>= 2) 2025-07-28 application/tgz https://CRAN.R-project.org/package=Qtools doi:10.32614/CRAN.package.Qtools