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rank
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The numbers 1, 2,…assigned to a set of objects arranged in order according to some criterion such as increasing numerical value. Many non-parametric tests are based on the use of ranks. If two or more observations are indistinguishable according to the chosen criterion then they are said to have tied ranks; they are usually assigned a rank equal to the average of the ranks that would have been assigned in the absence of ties. The following set of twelve values includes two examples of ties:
From: ranks in A Dictionary of Statistics »
