DESseq2

Heatmap

Figure 1: heatmap of sample similarities based on Euclidean distance deviations. The counting matrix used is the result of STAR mapping followed by RSEM quantification.

source : nf-core RNAseq MultiQC

The heat map represents the comparative values obtained after calculating the Euclidean distances in the previous PCA. Here, the bluer the squares, the closer the samples are; the redder they are, the further apart they are. This graph can be used to analyze the differences between each sample.