| 摘要 |
This data analysis device, for analyzing data that includes records which each include an objective variable and multiple explanatory variables, is provided with: a node creating unit that creates, on the basis of an objective variable and explanatory variables in each of the records, a node prescribed under the conditions of the explanatory variables, and associates the record with the node; an evaluation value generating unit that generates, as an evaluation value, the percentage of the number of records, among the multiple records associated with the nodes, which each have the objective variable which is a target value; and a parameter extracting unit that selects a node on the basis of the evaluation value, and extracts and outputs the conditions of the explanatory variables according to the selected node. |
