systole.hrv.rmssd#
- systole.hrv.rmssd(rr: Union[List, ndarray], input_type: str = 'rr_ms') float[source]#
Root Mean Square of Successive Differences.
- Parameters
- rr
R-R interval time-series, peaks or peaks index vectors. The default expected vector is R-R intervals in milliseconds. Other data format can be provided by specifying the “input_type” (can be “rr_s”, “peaks” or “peaks_idx”).
- input_type
The type of input provided. Can be “peaks”, “peaks_idx”, “rr_ms” or “rr_s”. Defaults to “rr_ms”.
- Returns
- y
The Root Mean Square of Successive Differences (RMSSD).
Examples
>>> rr = [800, 850, 810, 720] >>> rmssd(rr) 63.77042156569664