r-cran-ks 1.13.4-1 (riscv64 binary) in ubuntu kinetic

 Kernel smoothers for univariate and multivariate data, including
 densities, density derivatives, cumulative distributions, clustering,
 classification, density ridges, significant modal regions, and two-
 sample hypothesis tests. Chacon & Duong (2018)
 <doi:10.1201/9780429485572>.