| 摘要 |
<P>PROBLEM TO BE SOLVED: To analyze not only a singular point but also increase and decrease tendency in time series data. <P>SOLUTION: A time series data analysis device comprises: a regression line generation unit 2 which, for time series data of a predetermined period which is specified by a user within time series data, generates a plurality of patterns of regression lines from the time series data of the predetermined period; an index calculation unit 3 which calculates predetermined indexes for the respective patterns; a separation point extraction unit 4 which extracts separation points of a regression line from a pattern having the best index among the plurality of patterns; and a tendency line generation unit 5 which generates a tendency line of the time series data by calculating a regression line of the time series data using the plurality of separation points extracted from the time series data as a boundary. By specifying tendency of time series data with a line, it is possible to analyze increase and decrease tendency of the time series data by the inclination of the line, and analyze a point at which inclination of line significantly changes as a singular point. <P>COPYRIGHT: (C)2013,JPO&INPIT |
