Online tutorial on survival analysis for biomarker discovery
Fig 2
Orange workflow demonstrating stratification and comparison of survival curves.
This workflow guides trainees through the grouping of data based on a continuous variable. The Select Rows widget partition data into groups (e.g., less than vs. greater than or equal to 6 minutes daily). Kaplan-Meier plot widget visualize survival curves and computes the log-rank test. Trainees can interactively select different variables to explore their impact on patient survival, and by using the workflow understand how feature-based stratification influences survival curves and statistical significance.