systole.hrv.time_domain#

systole.hrv.time_domain(rr: List | ndarray, input_type: str = 'rr_ms') → DataFrame[source]#

Extract all time domain parameters from R-R intervals.

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:

stats: Time domain summary statistics. * ‘MeanRR’ : Mean of R-R intervals (ms). * ‘MeanBPM’ : Mean of beats per minutes (bpm). * ‘MedianRR’ : Median of R-R intervals’ (ms). * ‘MedianBPM’ : Median of beats per minutes (bpm). * ‘MinRR’ : Minimum R-R intervals (ms). * ‘MinBPM’ : Minimum beats per minutes (bpm). * ‘MaxRR’ : Maximum R-R intervals (ms). * ‘MaxBPM’ : Maximum beats per minutes (bpm). * ‘SDNN’ : Standard deviation of RR intervals (ms). * ‘SDSD’ : Standard deviation of the Successive difference (ms). * ‘RMSSD’ : Root Mean Square of the Successive Differences (ms). * ‘nn50’ : number of successive differences larger than 50ms (count). * ‘pnn50’ : Proportion of successive difference larger than 50ms (%).