Biomedical signals

Detect regularity in physiological signals such as heart rate.

import pandas as pd
from entroscope import sample

heart_rate = pd.read_csv("ecg.csv")["bpm"]
regularity = sample.rolling(heart_rate, window=100, m=2, r=0.2)

Lower sample entropy means a more regular, predictable signal; rising sample entropy can flag a transition to a less regular regime.