Publication date: 05/24/2021

For the score plot group comparisons, the relative score contribution for variable j is the difference between the average contribution in group B and the average contribution in group A:

where

T*i = the ith row of the score matrix with columns corresponding to the dimensions shown in the score plot.

A = the set of observations in group A

B = the set of observations in group B

na = the number of observations in group A

nb = the number of observations in group B.

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