Kaplan-Meier plot on the Human breast cancer data. Kaplan-Meier plot indicating the difference in disease free survival characteristics of the six groups discerned on the 509 human samples. The samples were grouped into six groups based on the number of non-zero weights. Group 1 consists of a small set of samples which were assigned all-zero weight vectors. Groups 2 to 5 consist of samples with a single non-zero weight (the group being determined by the weight being non-zero). Group 6 consists of the samples with more than one non-zero weight. The p-value corresponds to the logrank test.