Numerical evaluation of cytologic data. V. Bivariate distributions and the Bayesian decision Boundary.

The evaluation of cytologic data often involves the classification of observations into alternative categories (data sets). Plotting the elliptical contours of bivariate distributions provides immediate insight into the structure of data sets and their mutual relations. In this paper, the computation of tolerance ellipses and confidence ellipses for bivariate distribution is demonstrated, and the finding of a Bayesian decision boundary between two bivariate distributions is illustrated.