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Analysing time series data

Smooth time series data by calculating a simple moving average using the mean or median for an odd number of data, including the use of spreadsheets.

gm-u3-t3-s2-d1

Interactive

Simple moving average

manipulative

An odd-sized window mean or median damps the wiggles of a time series — scrub the window to see which points feed each smoothed value.

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