heartcv.stats

heartcv.stats(peaks, sample_length, fs, windows=1)

Calculate cardiac statistics for the peaks detected.

Parameters

• peaks (ndarray) – Detected peaks.

• sample_length (int) – Length of time-series data.

• fs (int or float) – Sampling frequency of footage.

• windows (int) – Number of windows to subsample the signal and average the resultant statistics over.

Returns

stats – Dictionary containing cardiac stats based on the data provided. The following keys can be accessed:

• ’bpm’: Beats per minute.

• ’min_b2b’: Minimum beat to beat interval.

• ’mean_b2b’: Mean beat to beat interval.

• ’median_b2b’: Median beat to beat interval.

• ’max_b2b’: Maximum beat to beat interval.

• ’sd_b2b’: Standard deviation in beat to beat interval.

• ’range_b2b’: Range in beat to beat intervals.

• ’rmssd’: Root mean square of successive differences in beat

  to beat intervals.

Return type

dict