The three variables are converted to percentage values, totalling 100 per cent. It is an extension to ggplot2 specifically for the plotting of ternary diagrams.Ternary diagrams are Barycentric plots w/ three variables, and, they are commonly used within the fields of chemistry, petrology, mineralogy, metallurgy, materials-science, genetics and game-theory, amongst others. In the present paper, we provide examples of this package in its most basic form followed by a demonstration of its ease of use, particularly if one is familiar with, and has a predilection towards using ggplot2 on a regular basis. This constructor enables raw data for three associated variables or components to be plotted in a two-dimensional triangular (or ternary) graph. ‘ggtern’ is a software package for the statistical computing language R. In order to produce ggtern, it was necessary to overcome a number of design issues, such as finding a means to modify existing geometries designed for a 2D Cartesian coordinate system and permitting them to function in an environment that requires an additional spatial aesthetic mapping. Ternary Plot Basics Ternary Plot Basics B A C B A C If component ‘a’ varies from 0 Î100, with ‘b’ the complement, the ternary plot trend is along the triangle base which connects ‘a’ and ‘b’. We demonstrate that ggplot2 can be used as the basis for producing specialized plotting packages and, in the present case, a package has been developed specifically for the production of high quality ternary diagrams. Based on the well-established ggplot2 package (Wickham 2009), the present package adopts the familiar and convenient programming syntax of its parent. Ternary scatter plot with Plotly Express Plotly Express is the easy-to-use, high-level interface to Plotly, which operates on a variety of types of data and produces easy-to-style figures. This paper presents the ggtern package for R, which has been developed for the rendering of ternary diagrams. Ternary Plots A ternary plot depicts the ratios of three variables as positions in an equilateral triangle.
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