nigsp.operations.timeseries.median_cutoff_frequency_idx¶

nigsp.operations.timeseries.median_cutoff_frequency_idx(energy)[source]¶

Find the frequency that splits the energy of a timeseries in two roughly equal parts.

Parameters:

energynumpy.ndarray: The array representing the energy (power) spectral density of a timeseries. this array can be 1D or 2D - if 2D it’s assumed that the second dimension represents subjects.

Returns:

int: The index of the frequency that splits the spectral power into two (more or less) equal parts.

Raises: