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Module 1: Trends

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Smoothing a time series

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XSIQ
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Core Mathematics - Smoothing a time series

Smoothing a time series

In order to make long-term trends apparent, data can be 'smoothed' by
removing any random variation and evening out the peaks and troughs.

You need to be familiar with three types of smoothing: median smoothing,
smoothing using moving averages and deseasonalisation.

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