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Definition of the similarity in a set of integers
Hello I have two sets of integers eg S1 = (25,14,32,45) and S2 = (26,12,31,48) I want to define an operation similar to the variance that give me how similar both sets are, for example in the above example for both sets the results I have to get need to be similar because both sets are similar. The problem with the variance is this S1 = (25,1,1,1) and S2 = (1,1,25,1) these two sets have the same variance but they are completly different. What mathematical operation can I use to do what I am looking for. Thanks a lot in advance.