Heatmap

A tale of two heatmap functions

You probably do not understand heatmap! Please read You probably don’t understand heatmaps by Mick Watson In the blog post, Mick used heatmap function in the stats package, I will try to walk you through comparing heatmap, and heatmap.2 from gplots package. Before I start, I want to quote this: “The defaults of almost every heat map function in R does the hierarchical clustering first, then scales the rows then displays the image”