select metrics to process, and also reduce processing overhead when only seeking stationary epochs for calibration
select metrics to process, and also reduce processing overhead when only seeking stationary epochs for calibration

aidendoherty/biobankAccelerometerAnalysis,computationalEpidemiology/biobankAccelerometerAnalysis,aidendoherty/biobankAccelerometerAnalysis,computationalEpidemiology/biobankAccelerometerAnalysis