Metodebevisregistrering

Ljung-Box Test

The Ljung-Box Q test is a diagnostic portmanteau test proposed by Ljung and Box (1978) to assess whether a group of autocorrelations in a time series residual sequence is jointly zero. It is widely used to evaluate the adequacy of fitted time series models — especially ARIMA models — by testing whether remaining residuals exhibit any systematic pattern. The test is applicable in econometrics, finance, and any field that relies on temporal data modeling.

Sources recorded, not reviewed

Kilderegistrering

Citater kopieret ordret fra metodens kilderegistrering. Ingen påstandsniveauverifikation er udledt heraf.

Ljung-Box Q Test for Autocorrelation

Taksonomisk metoderegistrering · hypothesis-test / econometrics

Ljung, G. M., & Box, G. E. P. (1978). On a measure of lack of fit in time series models. Biometrika, 65(2), 297–303. · DOI 10.1093/biomet/65.2.297

Åbn fuld metode

Kuraterede påstande

Påstande gemt i bevis-loggen, hver med sin egen vurdering.

Ingen kuraterede påstande endnu

Denne visning opfinder ikke en påstandsvurdering, når loggen ingen har.

Relaterede metoder

Genereret fra metodegrafen og vist som maskinelt foreslåede relationer — ingen bevispåstand er udledt.

Used in the same domainARIMAmachine-suggested · Relational suggestion, not evidence.Used in the same domainBreusch-Godfrey Testmachine-suggested · Relational suggestion, not evidence.Used in the same domainDurbin-Watson Testmachine-suggested · Relational suggestion, not evidence.