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I have applied 3 MDS techniques to a data set. They are; classical metric scaling, Kruskal's non-metric scaling and Sammon's metric least squares scaling. In order to compare the 3 configurations I am using Procrustes analysis.

In R, there is an option to display an "impulse diagram of residuals". How do I interpret these plots?

Thank you for your help in advance. enter image description here

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