RULESTABLE subcommand (SPATIAL ASSOCIATION RULES command)

The RULESTABLE subcommand controls the display of a table of rules, sorted by the value of the specified criterion.
  • The table displays the top n rules (based on NUMRULES), based on the selected criterion.
  • The table displays values for all criteria.
  • To display results sorted by different criteria, use multiple RULESTABLE subcommands.
DISPLAY=NO | YES
Controls the display of the rules. The default display setting is NO.
NUMRULES=integer
The maximum number of rules to include in the output.
  • The value must be an integer between 2 and 50.
  • The specified value is the maximum number of rules. The final number of rules included could be lower than that.
  • The default value is 30.
CRITERION=value
The criterion to use for rules.
  • Only one criterion can be specified on each subcommand.
  • To display rules for more than one criterion, use multiple subcommands.
CONFIDENCE
The percentage of correct rule predictions. This is the default setting.
RULESUPPORT
The percentage of cases for which the rule is true. For example, if the rule is "If x=1 and y=2, then z=3," rule support is the actual percentage of cases in the data for which x=1, y=2, and z=3.
LIFT
Lift is a measure of how much the rule improves prediction compared to random chance. It is the ratio of correct predictions to the overall occurrence of the predicted value. The value must be greater than 1. For example, if the predicted value occurs 20% of the time and the confidence in the prediction is 80%, then the lift value is 4.
CONDSUPPORT
The percentage of cases for which the rule condition exists. For example, if the rule is "If x=1 and y=2, then z=3," condition support is the proportion of cases in the data for which x=1 and y=2.
DEPLOYABILITY
The percentage of incorrect predictions when the conditions are true. Deployability is equal to (1-confidence) multiplied by condition support or condition support minus rule support.