R Labs for Vegetation Ecologists

This section of the Laboratory for Dynamic Synthetic Vegephenonenology (LabDSV) includes tutorials and lab exercises for a course in quantitative analysis and multivariate statistics in vegetation ecology. Example data sets are included and may be downloaded to run the exercises if desired. Please understand, it is not my intention to teach vegetation analysis in these labs. HTML is simply too limiting. My intention is to demonstrate the utility of R (and S-Plus) for vegetation analysis, to teach the rudiments of the R syntax, and to make routines and examples available to augment formal study in vegetation ecology.

As a compromise to those more interested in ecology than S, I have written a number of functions that minimize the amount of S you have to learn to perform vegetation analysis. For those also interested in R, I have included annotated copies of functions at the bottoms of the lab.

Since I first wrote and posted this material years ago R has undergone extraordinary development, and has been adopted wholeheartedly by ecologists. Accordingly, I have re-written severali sections to update the material to reflect usage. Nonetheless, the untentionsi to be useful to beginners as well as more experienced ecological analysts. In additon, web pages are undergoing a progressive transition to a CSS style sheet and may be in formatting flux for a little while.

The materials and exercises currently available include:

The current versions of the LabDSV, optpart, and coenoflex R packages are available for both linux/unix and Windows at http://www.cran.r-project.org.

For more information contact Dave Roberts at droberts@montana.edu

The syllabus for BIOL 540 - Analysis of Ecological Communities is available here: