Partial autocorrelation removes earlier lag effects from time-series correlation

mdancho84 · x · 2026-07-22

Partial autocorrelation

The post contrasts autocorrelation with partial autocorrelation. Autocorrelation captures correlation with past values, while partial autocorrelation removes the effect of earlier lags to expose the direct relationship at a given lag.

The accompanying chart illustrates the idea visually as part of a time-series analysis lesson.

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