[R] hierarchical partitioning

[François MICHONNEAU]

Hello,

If you obtain negative values in the results of your hierarchical
partioning it means that the join contribution of your variables
explain more of the variation than the sum of the individual effects
of your variables.
You can find some more information in the original paper:
Chevan & Sutherland 1991 - Hierarchical partioning - The American
Statistician 45(2):90-96

François Michonneau