Fig. 2From: Prediction of Stress Increase at Ultimate in Unbonded Tendons Using Sparse Principal Component AnalysisMeasured \(\Delta f_{ps}\) vs. predicted \(\Delta f_{ps}\) (in MPa) from the PCA models using a all variables, and the b combined Continuous and Categorical, c Self-Selected, and d Correlation Cutoff variable subsets.Back to article page