electricpy.cosfilt

electricpy.cosfilt(arr, Srate, domain=False)

Cosine Filter Function.

Cosine Filter function for filtering a dataset representing a sinusoidal function with or without harmonics to evaluate the fundamental value.

Parameters:

• arr (numpy.ndarray) – The input data array.

• Srate (int) – Sampling rate for dataset, specified in number of values per fundamental cycle.

• domain (bool, optional) – Control argument to force return of x-axis array for the filtered data.

Returns:

• cosf (numpy.ndarray) – Cosine-filtered data

• xarray (numpy.ndarray) – X-axis array for the filtered data.