Nonlinear U.S. airline output modelling with ridge regression, RBF and polynomial kernel ridge, I-splines, cross-validation, and partial dependence.
machine-learning r rbf-kernel cross-validation variable-importance econometrics regularization ridge-regression rmse panel-data kernel-ridge-regression nonlinear-regression polynomial-kernel basis-expansion spline-regression reproducing-kernel-hilbert-space ecdat partial-dependence airline-economics i-splines
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Updated
Aug 12, 2026 - R