Overlaying cdf plots

MR_dice_icon.jpg This page is part of the online help for ModelRisk . You can download a fully functional 30-day trial here . The trial comes with free product support - feel free to contact us if you have any questions.

See also: Cumulative probability plots, Second order cumulative probability plot, Presenting results introduction, Graphical descriptions of model outputs

Several cumulative distribution plots can be overlaid together. The plots are easier to read if the curves are formatted into line plots rather than area plots:

image291.gif

Overlaying cumulative plots like this is an intuitive and easy way of comparing probabilities, and is the basis of stochastic dominance tests. It is not very useful, however, for comparing the location, spread and shape of two or more distributions, for which overlaying density plots are much better.

We recommend that a complimentary cumulative distribution plot is given alongside the histogram (density) plot to provide the maximum information.

Read on: Stochastic dominance tests