Area  vs. Probability – enabled when a response theme is active.

Reads the areas and posterior probabilities from the attribute table of a response theme. Creates a new table (default name is freq<#>.dbf) and writes the cumulative areas and corresponding probabilities. Then creates an XY chart of the table values. The table can be opened in software other than ArcMap, that reads the dBase file format, to create a more complex chart. A better display is often obtained by graphing the freq file in Excel with one or all of the axis in a log scale. See the example below. This chart suggests there are 3 classes in this model. The first class includes about 90% of the area, the second class is the cluster of points that are much less than 0.01 LR Posterior Probability and just below 100%. The final class is the tiny area with a Posterior probability near 0.05.