Sa function

Compute the SA component of the SAZED ensemble

Sa computes the autocorrelation of its argument, and then derives the season length from its spectral density.

Sa(y, preprocess = T)

Arguments

• y: The input time series.
• preprocess: If true, y is detrended and z-normalized before computation.

Returns

The SA season length estimate of y.

Examples

season_length <- 26
y <- sin(1:400*2*pi/season_length)
Sa(y)
Sa(y, preprocess = FALSE)