Fig. 3
From: Conformal prediction quantifies wearable cuffless blood pressure with certainty

Bland-Altman plot and Scatter plot of the estimated 24 h ambulatory systolic blood pressure (SBP) (a), (b) and diastolic blood pressure (DBP) (c), (d) (blue for daytime measurements, and green for nighttime measurements) by the Gradient Boosting Regression Tree (GBRT) model versus reference SBP and DBP.