HRV from Empatica E4

Using the BVP file exported from the Empatica E4 band, this script uses the peakutils, and the Root Mean Square of the Successive Differences (RMSSD) to calculate the Heart Rate Variability, based on the next formula:

$\sqrt{\frac{1}{N-1}\left(\sum_{i=1}^{N-1}\Big((R - R)_{i+1}-(R - R)_i\Big)^2\right)}$

Usage

Execute the script where you have all the data exported from your Empatica session.

python empaticaHRV.py

Code based on

EEGrunt
Python Heart Rate Analysis Toolkit

Jegama/empaticaHRV

HRV from Empatica E4

Usage