Multivariate ordination methods are commonly used in ecology to investigate patterns in species composition in space or time. Constrained ordination methods such as redundancy analysis (RDA) and canonical correspondence analysis (CCA) are effectively just multiple regressions, but we lack the … Continue reading → [Read more...]

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I overlooked blogging about this at the time, but Jari released a minor update to our Vegan package to fix a few issues following release of R 2.13-0. As far as the user is concerned, this mainly affects capscale(). metaMDSrotate(), … Continue reading → [Read more...]

Yesterday Jari packaged up the latest release in the current stable branch of the vegan package. Version 1.17-9 of vegan is now on CRAN as a source tarball with binaries for MS Windows and MacOS X to follow soon. New … Continue reading → [Read more...]

Today I had a great reminder of why I love open source software and why I spend a bit of my time contributing R code to several packages. In the vegan, I had included some code to do an analysis … Continue reading → [Read more...]