RNA-Seq: gene expression heatmap based on DGE

[dktanwar]

Plot heatmap of genes expression across timepoints

1. log transform the data
2. normalize expression to PND8 mean expression
3. Perform k-means for clusters 2 to 10
4. Perform serialization to identify patterns
5. Make heatmaps for all k-means clustering
6. Determine the best k-means
7. Merge k-means clusters (if necessary)

• [x] All genes with fdr <= 0.05 and abs(LFC) >= 1
• [x] Common genes with fdr <= 0.05