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Editing: _spectral.cpython-311.pyc
� d�c� � � � d Z ddlZd� ZdS )z9Tools for spectral analysis of unequally sampled signals.� Nc �@ � | j |j k rt d� � �t j |� � }t j | � � }t j | � � }t |j d � � D �]�}d}d}d} d} d} t j || | z � � |dd�< t j || | z � � |dd�< t | j d � � D ]f} ||| || z z }||| || z z }| || || z z } | || || z z } | || || z z } �g|| dk rt � � �t j d| z | | z � � d|| z z } t j || | z � � }t j || | z � � }||z }||z }d|z |z }d||z ||z z dz || z || z z || z z z ||z ||z z dz || z || z z || z z z z z ||< ���|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.r g N� g �?) �shape� ValueError�np� empty_like�range�cos�sin�ZeroDivisionError�arctan2)�x�y�freqs�pgram�c�s�i�xc�xs�cc�ss�cs�j�tau�c_tau�s_tau�c_tau2�s_tau2�cs_taus �8/usr/lib/python3/dist-packages/scipy/signal/_spectral.py� _lombscargler" sa � �@ �w�!�'����B�C�C�C� �M�%� � �E� � �a���A� � �a���A� �5�;�q�>� "� "� 9� 9�� �� �� �� �� ���v�e�A�h��l�#�#��!�!�!���v�e�A�h��l�#�#��!�!�!���q�w�q�z�"�"� � �A� �!�A�$��1��+� �B� �!�A�$��1��+� �B� �!�A�$��1��+� �B� �!�A�$��1��+� �B� �!�A�$��1��+� �B�B� ��8�q�=�=�#�%�%� %��j��R���b��)�)�Q��q��\�:����u�Q�x�#�~�&�&����u�Q�x�#�~�&�&���� ���� ���U��U�"���E�B�J���� 3�a�7� �b�[�6�B�;� &��"�� 4� 6��b�j�5�2�:�%�� )��r�k�F�R�K�'�&�2�+�5�7�8� 9��a��� �L� )�__doc__�numpyr r" � r# r! �<module>r' s8 �� @� ?� � � � �J� J� J� J� Jr#
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