Pairwise Averages
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Stat > Nonparametrics > Pairwise Averages

Pairwise Averages calculates and stores the average for each possible pair of values in a single column, including each value with itself. Pairwise averages are also called Walsh averages. Pairwise averages are used, for example, for the Wilcoxon method.

Dialog box items

Variable: Enter the column for which you want to obtain averages.

Store averages in: Specify the storage column for the Walsh averages. For n data values, Minitab stores n (n + 1) / 2 pairwise (or Walsh) averages.

Store indices in: Check to store the indices for each average, then specify two columns which will contain the indices. The Walsh average, (xi + xj) / 2, has indices i and j. The value of i is put in the first column and the value of j is put in the second storage column.