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(A) Correlation plot of K-means clusters for one random run with INTCLUST5 and 5-year survival. (B) Heatmap K-means clustering of training set and KNN classification of validation set over 10 random runs. Colors indicate group number across runs. Cluster groups are stable, particular for the group with worst survival (Group 1 in Run 1), as most patients classified into one particular group will be clustered into the same group for across repeated runs.
