Outlier factor estimation support device, outlier factor estimation support method and outlier factor estimation support program

摘要

PROBLEM TO BE SOLVED: To easily estimate the cause of outliers. SOLUTION: A factor of an outlier in the past and a basic statistic and a distance when the factor occurs are stored in association with each other. The data 121 is held, and the data constituting the measurement data 121 is associated with a variable composed of the same type of data on the one hand and a record on the other hand, and is associated with an input device 132 that specifies a predetermined outlier. In the measurement data 121, the distance calculation processing unit 111 that calculates the Maharanobis distance for the data belonging to the same record as the specified outlier, and the variable ranking is calculated based on the Maharanobis distance, and the basic statistics in the variable. It is characterized by having a ranking display processing unit 112 that estimates factors, ranks variables, and displays the factors by comparing with the basic statistics stored in the past statistical data 122. .. [Selection diagram] Fig. 1