As heatmaps in R are a recurring theme, I thought I'd collect information here:
1. List of heatmap functions (and packages) in R:
- heatmap.2 (package gplots)
- heatmap.3 (package GMD)
- aheatmap (package NMF)
- ggheat (code in this blog post)
3. Biostars posts:
- How Do I Draw A Heatmap In R With Both A Color Key And Multiple Color Side Bars?
EDIT 2017-02-03: Added more heatmaps. Thanks to people contributing below.
EDIT 2017-03-14: Added another one.
EDIT 2019-05-28: Added another one.