1. moving average
Wikipedia definition
2. Moving averageIn statistics, a moving average, also called rolling average, rolling mean or running average, is a type of finite impulse response filter used to analyze a set of datum points by creating a series of averages of different subsets of the full data set. Given a series of numbers and a fixed subset size, the first element of the moving average is obtained by taking the average of the initial fixed subset of the number series.
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Read “移動平均” on Japanese Wikipedia
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