data science course singapore data science course singapore | Seite 33

Correlogram or ACF plot
•  Plots the ACF or AutocorrelaHon funcHon (r k )
against the lag (k)
•  Plus-and-minus two-standard errors are
displayed as limits to be exceeded for staHsHcal
significance
•  Reveals lagged variables that can be potenHally
useful for forecasHng
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