MOPED

https://www.dropbox.com/s/h6i1axea9ahcuj4/MOPED_setup.exe?dl=0

MOPED - modelling patterns in environmental data

Download Version 3.2 updated 13 April 2020

MOPED was developed to make life easier for people who carry out multivariate analyses by providing a series of linked procedures to:

      • display patterns and cluster similar data together, including TWINSPAN, SOMs and UPGMA
      • develop models:
        • Discriminant ,
        • Linear regression (least squares and least absolute deviation),
        • Loess
        • Generalised additive (GAM normal, binomial, poisson, gamma)
        • and use the models for prediction.
    • Scatterplots with numeric or data/time data and curves plotted through data using:
      • Linear
      • Log-Log
      • Lowess
      • Loess
      • GAM
      • Quantile (linear)
      • or user supplied function

Variables can be included in models as polynomials, forward or all subset stepwise techniques

can be used to select the "best" set of variables.

The steps in a typical analysis are:

  • open Data file of species and environmental data
  • cluster analysis of species using one of four procedures
  • review clusters and merge if required
  • discriminant, regression, or GAMs analysis to relate clusters to environmental data
  • check model by using the original data file to predict species from environmental data
  • save model for future use.

The model can then be used by entering environmental data for a site (or reading it from a file) and predicting species abundance (and likelihood of occurrence for discriminant or GAM logistic models) at the site.