Menu location: Data_Pairwise_Differences.
This function creates a column of all possible (n*n) pairwise differences from a pair of columns:
|
X |
Y |
|
1 |
2 |
|
2 |
3 |
|
3 |
6 |
Differences (X, Y)
-1
-2
-5
0
-1
-4
1
0
-3
All possible (n * n) Xi...(i=1 to k) are compared with Yj...(j=1 to k).
These contrasts form intermediate steps in a number of non-parametric statistical methods.