Priors

Use this selection to specify prior probabilities when the sample data has a different distribution from that of the whole population. For more information about priors, see Priors.

Specify how the values of the Target are distributed in the larger population. The following information is displayed in a grid:

  1. Value, the value of the target
  2. Count, the total number of case in the build data set where the target is equal to Value
  3. Current Distribution, the percent of cases where the target is equal to Value
  4. Priors Distribution, the percent of cases where the target is equal to Value in the larger population

Current Distribution and Priors Distribution are initially equal. Change values in the Priors Distribution column so that they represent the population. The sum of all values in Priors Distribution must be 100.0.

To restore the original display, click Restore.

When you are done, click OK to return to the previous dialog.

The wizard checks that you have specified valid priors that add up to 100.0 and reports any problems.