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Association (AR) supports these settings:
Maximum Rule Length: The maximum number of attributes in each rule; this number must be an integer between 2 and 20. Higher numbers of rules result in slower builds. The default value is 4.
You can change the number of attributes in a rule, or you can specify no limit for the number of attributes in a rule. Specifying a large number of attributes in each rule increases the number of rules considerably. A good practice is to start with the default and increase this number slowly.
Minimum Confidence: Confidence indicates how likely it is that these items to occur together in the data. Confidence is the conditional probability that the consequent will occur given the occurrence of the antecedent. See also Association Rules.
Confidence is a number between 0 and 100 indicating a percent. High confidence results in a faster build. The default is 10%.
Minimum Support: A number between 0 and 100 indicating a percent. Support indicates how often these items occur together in the data. See also Association Rules.
Smaller values for support results in slower builds and requires more system resources. The default is 1%.