electricpy.cosfilt¶

electricpy.cosfilt(arr, Srate, domain=False)[source]¶

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.