Autocorrelation measures how a series relates to its own past values

mdancho84 · x · 2026-07-22

Autocorrelation

The post defines autocorrelation as the correlation between a time series and its own past values. It is presented as a way to measure how current observations relate to earlier observations.

The linked visual shows the concept alongside a sample time-series plot, making it a basic building block for forecasting and diagnostics.

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