| 摘要 |
Characteristics of undulating data having variations with oppositely directed peaks are displayed on a display having x and y axes. The consecutive, oppositely directed peak values of each variation are determined. Each variation is assigned to a coordinate position on the display so that the coordinate position in the x and y directions is respectively determined by the initial and final peak values of each variation. The variations having like initial and final peak values are accumulated so an indication of the accumulated variations is displayed on the coordinate positions of the display.
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