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Outlier factor estimation support device, outlier factor estimation support method, and outlier factor estimation support program
Outlier factor estimation support device, outlier factor estimation support method, and outlier factor estimation support program
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摘要
An object of the present invention is to easily estimate a factor of an outlier. SOLUTION: The past statistical data 122 in which a factor causing an outlier in the past, the basic statistic amount and the distance when the factor occur, are stored in association with each other, and the measurement in which a measured value or the like is stored. The data 121 that holds the data 121 and that is included in the measurement data 121 is associated with a variable that is composed of data of the same type on the one hand and is associated with a record on the other hand, and an input device 132 that specifies a predetermined outlier. In the measurement data 121, the distance calculation processing unit 111 that calculates the Mahalanobis distance for the data that belongs to the same record as the specified outlier, and the ranking of the variable is calculated based on the Mahalanobis distance. And a basic statistic stored in the past statistical data 122 are compared to estimate a factor, and a ranking display processing unit 112 that displays the ranking of the variable and the factor is provided. .. [Selection diagram] Figure 1
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