Research on Water Quality Assessment based on Bayes Discriminatory Analysis

On the premise of equal error discrimination and the normal distribution, this paper analyses the water quality eutrophication of nine lakes region of Tai lake in 2000, and sets up Beyes discrimination function, then make sure the type of sample individual on the basis of standards. The water quality changing in five years of every region of Tai lake can be seen from the analytical results, and then provides scientific basis for water resources management.