Exceedance Probability

Administration Console > Loss Defaults > Exceedance Probability

Exceedance Probability (EP) enables you to set defaults for the number of exceedance probabilities and return periods that appear in loss analysis results, for up to 15 point sets. You can also set a default to display or not display the return period in the loss analysis results.

For example: An EP of 0.4% with a 250-year return period indicates the amount that is likely to be equaled or exceeded in 1 year out of 250 on average, or 0.4 percent of the time, while an EP of 5.00% with a 20-year return period indicates the amount that is likely to be equaled or exceeded in 1 year out of 20 on average, or 5 percent of the time.

Set loss defaults for exceedance probability in the Exceedance Probability pane. To create a new point set, simply click in each field and enter numbers for probability and year.

Parameters and Buttons	Description
Common Buttons	Use these buttons (when applicable) and the parameters below to set defaults for exceedance probability.
Exceedance Probability	Click in an existing exceedance probability cell and then enter a new number. Default values are: .1% (0.00100), .2% (0.00200), .4% (0.00400), 1% (0.01000), 2% (0.02000), and 5% (0.05000).
Return Period (yr)	Click in an existing return period cell and then enter a new number (integer, year). Default values are: 20, 50, 100, 250, 500, and 1000.