There's a script here too, but it looks a little dated.For Python, WxTernary and Veusz look like they may be the best choices.Of those tools, ggtern (in R) seems to have a lot of features, like contours and density maps.A great many tools are discussed in this StackOverflow thread, mostly using R and Python.
#Ternary diagram excel template mac os x#
The only tools I've used on the battlefield, so to speak are Trinity, for ternary plots, and TetLab, for tetrahedrons (yes, I went there), both Mac OS X only, and both from Peter Appel of Christian-Albrechts-Universität zu Kiel. How about four parameters with three degrees of freedom mapped onto a tetrahedron? Fun to make, not so fun to look at. Hence their popularity for the results of point-count data, like this Folk classification from Hulk & Heubeck (2010). This works well for volume fractions, which must sum to one. Not a projection, like a 3D scatter plot, because there are only two degrees of freedom - the parameters of a ternary diagram cannot be independent. The three-dimensional equivalent of the spectrum is the ternary diagram: 3-parameter space mapped onto 2D. The thing about a spectrum is that it's two-dimensional, like a scatter plot, but it has only one degree of freedom, so we can map it onto one dimension: a line. I wonder where geology and geophysics lie. There's a science purity continuum too, with mathematics at one end and social sciences somewhere near the other. (Establishing where various pastimes lie on this continuum is a good way to start an argument in a pub.) Contrast that with a pure game, like darts: no fitness, pure technique. Sports are pure competition - a test of strength and endurance, with few rules and unequivocal outcomes. They represent a continuum between two end-member states, both rare or unlikely in between there are shades of ambiguity, and this is usually where nature lives. It's not just because I like signals and Fourier transforms, or because I think frequency content is the most under-appreciated attribute of seismic data. I like spectrums (or spectra, if you must).