|MyPulse provides all data, charts and modern heart rate variability analysis recommended in this reference.
Examples: Maximum, minimum, difference, mean, standard deviation, reciprocal, change, histogram, autocorrelation function, spectral analysis, alpha log ratio for 5 minute, 24 hour, or longer beat to beat rates, or interbeat times between QRS complexes.
Malik, M. "Heart Rate Variability: standards of measurement, physiological interpretation, and clinical use. Task Force of the European Society of Cardiology & North American Society of Pacing Electrophysiology. http://circ.ahajournals.org/cgi/content/full/93/5/1043
Ridley, D., and Ngnepieba, P. "Separating Internal Biological effects from External Environmental effects," Merit research journal of medicine and medical sciences, 3(5), 2015. http://www.meritresearchjournals.org/mms/index.htm.