Figure 6: Dendrogram of hierarchical cluster analysis of samples from the three iNSC gene expression datasets. Hierarchical clustering (agglomerative) of the normalized virtualArray “Expression Set” for all the three gene expression datasets was done using Euclidean distance matrix and average linkage method through “virtualArrayHclust”, a function for hierarchical clustering in virtualArray package. The “Expression Set” contains probes that are common across all the three gene expression datasets. Abbreviations: MEF, Mouse Embryonic Fibroblasts; ESC, Embryonic Stem Cell; NSC – Neural Stem Cell; iNSC, induced Neural Stem Cell; 4F, 4 factors; 5F, 5 factors; rep, replicate.