MACROTREND CALCULATION DEVICE, METHOD THEREFOR AND RECORDING MEDIUM RECORDED WITH MACROTREND CALCULATING PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide the macrotrend calculation device and method which can intuitively grasp the degree of total temporal variation from a table of items and numerals put together by periods, and to provide the recording medi um where the macrotrend calculating program is recorded. SOLUTION: The items and frequencies are managed by the periods in the form of a frequency-by-period table 1, an ID generation part 3 imparts an ID for uniquely identifying each item, and a vector generation part 5 generates a vector from the ID and frequency corresponding to each item, period by period; and a degree of variation calculation part 7 calculates the degree of variation in adjacent periods of the frequency-by-period table by using the vector and a graph display part 9 graphs and visualizes the degree of variation.