Data Analysis Tools over Space of Phylogenetic Trees Using Tropical Geometry R package Rtropical version 1.2.1 Process phylogenetic trees with tropical support vector machine and principal component analysis defined with tropical geometry. Details about tropical support vector machine are available in : Tang, X., Wang, H. & Yoshida, R. (2020) <arXiv:2003.00677>. Details about tropical principle component analysis are available in : Page, R., Yoshida, R. & Zhang L. (2020) <doi:10.1093/bioinformatics/btaa564> and Yoshida, R., Zhang, L. & Zhang, X. (2019) <doi:10.1007/s11538-018-0493-4>. Software Depends: R (>= 3.5.0) Imports: ape, lpSolve, lpSolveAPI, parallel, Rfast, RcppAlgos, caret Suggests: rmarkdown, knitr, e1071, testthat (>= 3.0.0) Houjie Wang <wanghoujie6688@gmail.com> Comprehensive R Archive Network (CRAN) Houjie Wang [aut, cre], Kaizhang Wang [aut], Grady Weyenberg [aut], Xiaoxian Tang [aut], Ruriko Yoshida [aut] GPL-3 2021-11-09 application/tgz https://CRAN.R-project.org/package=Rtropical doi:10.32614/CRAN.package.Rtropical