How to find the minimum support in Apriori algorithm

Question

When the percentage values of support and confidence is given how can I find the minimum support in Apriori algorithm. For an example when support and confidence is given as 60%

Answer 1

I'm not sure your question makes sense. From your example if you have at least one rule returned with Support and Confidence of 60% you can be sure that the Minimum-Support is at least 60% but it could be more.

Minimum-Support is a parameter supplied to the Apriori algorithm in order to prune candidate rules by specifying a minimum lower bound for the Support measure of resulting association rules. There is a corresponding Minimum-Confidence pruning parameter as well.

Each rule produced by the algorithm has it's own Support and Confidence measures. Roughly, Support is the ratio of instances for which the rule is true out of all instances. Confidence is the ratio of instances for which the rule is true out of the number of instances for which the antecedent (LHS of the implication) is true.

Check out Wikipedia for more rigorous definitions.