Method of cluster analysis and Bayes distinguish on regional landforms

In order to explain scientifically the datum of regional landforms, and to seek the model of establishing figures system on regional landforms,the regional landforms are classified by the method of system cluster analysis,and rationality of the classifying is tested by the method of Bayes distinguish.The classifying results are identical with results of Bayes distinguish.It showed that classifying result by method of system cluster analysis to regional landforms is scientific.