Create Ternary and Holdridge Plots R package Ternary version 2.3.7 CRAN Task View: CompositionalData (https://CRAN.R-project.org/view=CompositionalData) Plots ternary diagrams (simplex plots / Gibbs triangles) and Holdridge life zone plots <doi:10.1126/science.105.2727.367> using the standard graphics functions. Allows custom annotation, interpolating, contouring and scaling of plotting region. Includes a 'Shiny' user interface for point-and-click ternary plotting. An alternative to 'ggtern', which uses the 'ggplot2' family of plotting functions. Software Depends: R (>= 3.6.0) Imports: PlotTools (>= 0.2.0), shiny, sp, clue, Suggests: colourpicker, knitr, readxl, rmarkdown, shinyjs, spelling, testthat (>= 3.0), vdiffr, Martin R. Smith <martin.smith@durham.ac.uk> Comprehensive R Archive Network (CRAN) Martin R. Smith [aut, cre, cph] (ORCID: <https://orcid.org/0000-0001-5660-1727>), Lilian Sanselme [ctb] GPL (>= 2) 2026-06-04 application/tgz https://CRAN.R-project.org/package=Ternary doi:10.32614/CRAN.package.Ternary en-GB