Definition of the similarity in a set of integers

*To*: mathgroup at smc.vnet.net*Subject*: [mg96380] Definition of the similarity in a set of integers*From*: Ryan Markley <overgeo at gmail.com>*Date*: Thu, 12 Feb 2009 06:40:42 -0500 (EST)

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.

**Follow-Ups**:**Re: Definition of the similarity in a set of integers***From:*Curtis Osterhoudt <cfo@lanl.gov>