Update 0008-05-01-Gene_set_enrichment.md

_posts/0008-05-01-Gene_set_enrichment.md

@@ -162,6 +162,12 @@ cnetplot(gse_epithelial, foldChange=gene_list)
 
 Based on these results, we could conclude that cluster 9 (putative luminal cells) have lower expression of quite a few pathways related to epithelial cell proliferation compared to cluster 12 (putative basal cells). 
 
+As an additional exercise, let's try to do an overrepresentation and GSEA analysis for the DE analysis we did on CD8 T cells. We did not have you save the file yesterday, so you can download the file first, and then use that for your analysis. 
+
+```R
+download.file(url = 'http://genomedata.org/cri-workshop/reference_files/cd8tcells_de_gsea.tsv',
+              destfile = 'outdir_single_cell_rna/cd8tcells_de_gsea.tsv')
+```