Fig. 3From: Prediction of Stress Increase at Ultimate in Unbonded Tendons Using Sparse Principal Component AnalysisPlot of SPCA \(R_{a}^{2}\) against number of non-zero loadings used per PC for a all variables and the b Continuous, c Categorical, d Self-Selected, and e Correlation Cutoff variable subsets. The maximum \(R_{a}^{2}\) for each model is highlighted with a filled marker.Back to article page