ggtern version 2.2.2 has just been submitted to CRAN, and it includes a number of new features. This time around, I have adapted the hexbin geometry (and stat), and additionally, created an almost equivalent geometry which operates on a triangular mesh rather than a hexagonal mesh. There are some subtle differences ... [Read more...]

It has been a while since any kind of significant update has been released for the ggetern library, and the other day a minor update was submitted to CRAN, which is now available. There were a few minor bug fixes, and the inclusion of a few new geometries which some ... [Read more...]

Hi Folks, ggtern v2.1.1 has just been submitted to CRAN. This includes a number of minor bug fixes, and an additional annotation, permitting the rendering of raster data, say for the inclusion of images. This post will demonstrate the use of this requested feature. Demonstration of Raster Annotation Several people ... [Read more...]

Version 2.1.0 has just been submitted to CRAN and should be available over the next day or so. This version primarily resolves the recent errors that people have been encountering when using ggtern with the most recent version of ggplot2 (v2.1.0). Specifically, the following errors recently emerged, due to (amongst other ... [Read more...]

Recently ggplot2 received a severe makeover by releasing version 2.0, and in the spirit of improvement, I thought ggtern should also get an overhaul, so after a few-hundred hours of code review, here is what has changed: Theme elements: Previously, the nomenclature scheme for the new theme elements was a bit ... [Read more...]

For a long time, people have been sending me requests for a suitable smoothing / contouring / interpolation geometry be made available via ggtern, over and above the Kernel Density function. I am very pleased to say, that the recent version 1.0.6 has this feature added. Let me demonstrate how it works. This ... [Read more...]

I received a request overnight on how to render the Shepard’s classification diagram, which is an alternative to the USDA’s textural soil classification. This is quite simple to produce (albeit a little tedious), however, before I walk through the script, immediately below, please see the final result (which ... [Read more...]

The other week a user of ggtern ran into a problem where they wanted to use the limit_tern(...) functionality, however there were a few marginal points / paths that extended beyond the limiting region. Under normal circumstances, the standard ggtern behaviour is to strip these points, which can interfere with ... [Read more...]

An update to ggtern, version 1.0.3.2, is now available on CRAN! This version includes a number of bug fixes: Added convenience functions, and global options for modifying the length of the ternary arrows easily. Fixed broken ggsave function, which was not using the local print function. Fixed geom_errorbarR reference in ... [Read more...]

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An update to ggtern, version 1.0.3.1, is now available on CRAN! This version includes a number of updates and functionality, which can be summarized below: Inclusion of USDA Soil Classification Data, accessed by: data(USDA) Creation of New geometries for ternary errorbars, ie, geom_errorbarT, geom_errorbarL and geom_errorbarR Creation ... [Read more...]

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An update to ggtern, version 1.0.2.0, is now available on CRAN! This version includes a number of updates, and, additional functionality, which can be summarized below: Better Documentation Theme commands were brought back inline with the ggplot2 format, for example, theme_tern_bw() has been superceded by theme_bw() as per ... [Read more...]

ggtern is now available on CRAN!   Since this was my first official package in R, I was pleasantly surprised at the rigour demonstrated by the volunteers in enforcing the many quality control standards! CRAN Landing Page for ggtern: The... [Read more...]

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