Table 4 Types of interaction between two covariates.
From: Ecosystem services scenario simulation in Guangzhou based on the FLUS-InVEST model
Interaction | Criteria |
|---|---|
Weaken, nonlinear | q(X1 ∩ X2) < Min(q(X1), q(X2)) |
Weaken, univariate | Min(q(X1), q(X2)) < q(X1 ∩ X2) < Max(q(X1), q(X2)) |
Enhance, bivariate | Max(q(X1), q(X2)) < q(X1 ∩ X2) |
Independent | q(X1 ∩ X2) = q(X1) + q(X2) |
Enhance, nonlinear | q(X1 ∩ X2) > q(X1) + q(X2) |
