Top Page | Upper Page | Contents | About This Site | JAPANESE

Decision of Abnormal by MT method

After the calculation of Mahalanobis' Distance of MT method , we need the next step for Prediction of Abnormal.

Data Oriented Approach

In this approach, if more than the max of MD of Unit Space , it is abnormal.

In my experience, real data is not beautiful ditribution. So this approach is enough.

Sample file has the function of this approach.

If "more than Max(MD^2 of unit space)", decision is "C".

I put "A" and "B". It is decided more than 1 or not. "1" is the average of MD^2 of unit space. If ration of "B" is less, unit space may include abnormal value.

NEXT Analysis of the cause of abnormalities by MT method