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11.5.2.2. astroML.time_series.ACF_EK

astroML.time_series.ACF_EK(t, y, dy, bins=20)

Auto-correlation function via the Edelson-Krolik method

Parameters :

t : array_like

times of observation. Assumed to be in increasing order.

y : array_like

values of each observation. Should be same shape as t

dy : float or array_like

errors in each observation.

bins : int or array_like (optional)

if integer, the number of bins to use in the analysis. if array, the (nbins + 1) bin edges. Default is bins=20.

Returns :

ACF : ndarray

The auto-correlation function and associated times

err : ndarray

the error in the ACF

bins : ndarray

bin edges used in computation