Table 9 Accuracy of multivariate rational RS model for the 12-bar truss structure problem
From: Multivariate Rational Response Surface Approximation of Nodal Displacements of Truss Structures
Evaluation standards | Node A |
|---|---|
Multiple fitting coefficient \(R^{2}\) | 1 |
Modified multiple fitting coefficient \(R_{\text{adj}}^{2}\) | 1 |
Maximum relative error ζmax/% | 2.03 × 10−3 |
Minimum relative error ζmin/% | 1.54 × 10−9 |
Average relative error ζavg/% | 1.67 × 10−4 |