STRENGTHENED CHARACTERISTIC ANALYSIS AND ITS APPLICATION IN APPRAISAL OF MINERAL RESOURCES
This paper introduces a modified characteristic analysis method, in which non-mineral samples are used and the characteristic of the model is strengthened. Firstly, the valuation of binary form is given to variables. The variable differences between mineral end ncn-mineral samples are studied. The value di is given to the variable xi, which is of importance to distinguish minerals from non-minerals. Secondly, the largest eigenvalue λ1 end its eigenvector λ of symmetric matric matrices D'X'XD are counted, and the element λi is the weight of the variable xi.Last,the favorabilities of all samples u = XDa are counted. An obvious difference has existed between the favorabilities of the two classes of the samples.