maximum lag. Default is \(2 \sqrt{n}\), where \(n\)
is the length of the time series y.
plot
logical. If TRUE (default), autocovariance acor is
plotted.
References
H.Akaike, E.Arahata and T.Ozaki (1975) Computer Science Monograph, No.6,
Timsac74, A Time Series Analysis and Control Program Package (2).
The Institute of Statistical Mathematics.