Statistical Ecology, by Ludwig and Reynolds

Each link below briefly describes the function of a BASIC language program. These are not executables and must be run under a BASIC compiler or interpreter. A self-extracting archive of all QUICK BASIC programs is also available.

Software:

• Blocked-quadrat variances
• Cluster analysis
• Correspondence analysis
• Detrended principal components analysis
• Fit frequency distribution to lognormal distribution
• Normal association analysis
• Chi-sqaure test against a negative bionomial distribution
• Nonmetric multidimensional scaling
• Principal components analysis
• Simple and multiple linear regression of principal components
• Ordination using the polar method
• Chi-sqaure test against a poisson series
• Spatial pattern analysis by the paired-quadrats variance method
• Caluclate number of species expected from different communities by rarefraction
• Simple discriminant analysis
• Species association tests
• Pearson's product-moment and Spearman's rank correlations
• Richness, diversity, and evenness indices
• Species overlap
• Distance coefficients
• Spatial pattern analysis by tsquare sampling distances