Fig. 21From: Earth-affecting solar transients: a review of progresses in solar cycle 24Scatter plots of SGRE duration with type II ending frequency (a) and type II duration (b). The best-fit lines (red) are obtained using the Orthogonal Distance Regression method, which considers errors in both X and Y variables. The shaded area represents 95% confidence interval of the fit (after Gopalswamy et al. (2018c))Back to article page