[Retracted] Integrative Nomogram of Computed Tomography Radiomics, Clinical, and Tumor Immune Features for Analysis of Disease-Free Survival of NSCLC Patients with Surgery

Figure 4

Heat map of matrix similarity analysis of radiomics features based on Pearson’s correlation coefficients. Highly correlated clusters are located along the diagonal demonstrating strong correlations. (a) Twenty-eight features before selection; (b) seven features after the selection.

(a)

(b)