CORRESPONDENCE-ANALYSIS WITH MATLAB

A portable program MATCORS, for correspondence analysis is presented. To help understand the correspondence analysis method and computer alg orithm, a detailed matrix algebraic description is used. Various diagn ostic results are provided in the program to aid in interpreting the r esults, for example relative and absolute contributions, error profile s, and supplementary elementary projections. A series of graphs genera ted by this program is helpful for the analysis of the results. High-q uality graphs are produced easily because the program operates within the user-friendly Matlab environment. Applications to soil sample data and precipitation data sets are given to verify and demonstrate this computer program.