o e@sdZddlZddZdS)z9Tools for spectral analysis of unequally sampled signals.NcCs|j|jkr tdt|}t|}t|}t|jdD]}d}d}d} d} d} t||||dd<t||||dd<t|jdD]4} ||| || 7}||| || 7}| || || 7} | || || 7} | || || 7} qM||dkrttd| | | d||} t||| }t||| }||}||}d||}d||||d|| || || ||||d|| || || ||<q |S)a" _lombscargle(x, y, freqs) Computes the Lomb-Scargle periodogram. Parameters ---------- x : array_like Sample times. y : array_like Measurement values (must be registered so the mean is zero). freqs : array_like Angular frequencies for output periodogram. Returns ------- pgram : array_like Lomb-Scargle periodogram. Raises ------ ValueError If the input arrays `x` and `y` do not have the same shape. See also -------- lombscargle z'Input arrays do not have the same size.rgNg?) shape ValueErrornp empty_likerangecossinZeroDivisionErrorarctan2)xyfreqspgramcsixcxsccsscsjtauc_taus_tauc_tau2s_tau2cs_taurE/var/www/myenv/lib/python3.10/site-packages/scipy/signal/_spectral.py _lombscargle sF        r!)__doc__numpyrr!rrrr s