Longitudinal functional additive model with continuous proportional outcomes for physical activity data
Longitudinal functional additive model with continuous proportional outcomes for physical activity data
Motivated by physical activity data obtained from the BodyMedia FIT device ( http://www.bodymedia.com ), we take a functional data approach for longitudinal studies with continuous proportional outcomes. The functional structure depends on three factors. In our three‐factor model, the regression structures are specified as curves measured at various factor points …