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BEKKs (version 1.4.5)

portmanteau.test: Performing a Portmanteau test checking for remaining correlation in the empirical co-variances of the estimated BEKK residuals.

Description

Method for a Portmanteau test of the null hypothesis of no remaining correlation in the co-variances of the estimated BEKK residuals.

Usage

portmanteau.test(x, lags = 5)

Value

Returns an Object of class "htest" containing the p-value and test statistic.

Arguments

x

An object of class "bekkFit" from function bekk_fit.

lags

An integer defining the lag length.

Details

Here, the multivariate Portmanteau test of Hosking (1980) is implemented.

References

J. R. M. Hosking (1980). The Multivariate Portmanteau Statistic, Journal of the American Statistical Association, 75:371, 602-608.