• mds.r Code for reading a data set, creating a data matrix with row and column names, doing nMDS, and plotting the results. Discussed on 20 Sept 05.
  • labelplots.r Code for various sorts of labeling points and identifying groups on an mds plot
  • ordiarrow.r Code for adding time arrows to mds plots. Need to source("ordiarrow.r") before using the function.
  • ordicentroid.r Code for adding group names to mds plots. Need to source("ordicentroid.r") before using the function.
  • envvar.r Code for vector fitting and surface fitting.
  • findzeros.r A function that identifies pairs of sites with 0 distance.
  • lipoclust.r Clustering
  • parkgrass.r Environmental variables
  • parkgrass1.r Code to compare PCA and PCoA using Euclidean distance