In this activity, we will explore real clinical data from breast cancer patients in The Cancer Genome Atlas (TCGA). The goal is not only to learn R. The goal is to use R to ask scientific questions: - What information is collected from cancer patients? - How do we summarize a large clinical dataset? - What kinds of missing or uncertain values appear in real biomedical data? - How can clinical features help us understand breast cancer subtypes?

Assignment 7 Chapter 8