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DREAM-High: Finding Patterns with Heatmaps
Large biological datasets are often too big to understand by reading numbers in a table.
In DREAM-High, we will eventually use heatmaps to look for patterns in breast cancer gene expression data from patients in The Cancer Genome Atlas. A heatmap can help us ask questions such as:
- Which samples look similar to each other?
- Which genes behave similarly across patients?
- Can visual patterns help us discover tumor subtypes?
Today we will learn the same basic idea using a small practice dataset that comes with R. In the process, we will be introduced to basic R functionality.
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