hctsa
firstmin_ac.Rd
Time of first minimum in the autocorrelation function from software package hctsa
firstmin_ac(x, acfv = stats::acf(x, lag.max = N - 1, plot = FALSE, na.action = na.pass))
x | the input time series |
---|---|
acfv | vector of autocorrelation, if exist, used to avoid repeated computation. |
The lag of the first minimum
B.D. Fulcher and N.S. Jones. hctsa: A computational framework for automated time-series phenotyping using massive feature extraction. Cell Systems 5, 527 (2017).
B.D. Fulcher, M.A. Little, N.S. Jones Highly comparative time-series analysis: the empirical structure of time series and their methods. J. Roy. Soc. Interface 10, 83 (2013).
firstmin_ac(WWWusage)#> [1] 21