Figure 2

Weighted PCA plots for individual sparse k-means clustering. Each point represents a patient and each class of patients is shown in a different color (blue or red). (A) Dura (Proportion of variance explained by PC1 (0.26) and PC2 (0.07)), (B) Blood (Proportion of variance explained by PC1 (0.46) and PC2 (0.09)), and (C) Cranial sparse k-means clustering analysis (Proportion of variance explained by PC1 (0.54) and PC2 (0.18)). The “true” patient class is unknown and is based on the sparse k-means clustering assignment.