Plot points with coordinates where \(x\) and \(y\) are equal. Three points are sufficient, but more can be plotted. Draw a line through the plotted points. If \(x\) is positive, \(y\) is negative.
The Kaplan-Meier plot This chart is used in clinical trials, to analyse chances of survival and other outcomes over time. It has a stepped shape, with each step representing an event (such as a ...