This setting specifies the number of decision tree levels for which policy data is saved. You may choose a number from 0 through the maximum number of levels in your decision tree, excluding 1. Once the analysis is complete, you can use the Policy Tree to examine this information. This setting determines the maximum number of levels you can expand to in the Policy Tree. The default is the maximum number of levels in the decision tree. The more levels that are gathered, the more memory is required to hold the policy. If you want to decrease memory requirements, you might consider collecting the minimum number of levels needed to display the optimal alternative for all decisions. This option does not affect the solution process or the numerical results.