The Sum Squares function, also referred to as the Axis Parallel Hyper-Ellipsoid function, has no local minimum except the global one. It is continuous, convex and unimodal. It is shown here in its two ...

This equals the between-cluster sum of squares divided by the corrected total sum of squares. the squared multiple correlation, R-Squared or RSQ. R 2 is the proportion of variance accounted for by the ...