Simple matching coefficient
From Infogalactic: the planetary knowledge core
The Simple Matching Coefficient (SMC) is a statistic used for comparing the similarity and diversity of sample sets.[1]
Given two objects, A and B, each with n binary attributes, SMC is defined as:
Where:
represents the total number of attributes where A and B both have a value of 1.
represents the total number of attributes where the attribute of A is 0 and the attribute of B is 1.
represents the total number of attributes where the attribute of A is 1 and the attribute of B is 0.
represents the total number of attributes where A and B both have a value of 0.
See also
Notes
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