Bootstrapped Savitzky-Golay filter method applied to a coronal wave event observed by STEREO-Ahead/EUVI 171 Å on 2007 December 7, revisited from Long et al. (2011). The top plot shows the distance-time measurements (plus symbols), the resampled residuals (red points), and the median (solid line), interquartile range (inner dashed lines), and upper and lower fences (outer dashed lines). The middle and bottom plots show the corresponding velocity and acceleration profiles.