Figure 1

Clustering of canine soft tissue sarcoma samples. (A) Unsupervised hierarchical clustering of 29 STS tumor samples using genes with variance > log2 5 and mean > log2 2. The samples were clustered using the spearman correlation distance method and grouped into 4 clusters. The clinical features associated with samples were plotted on the right side of the heatmap. (B) Multidimensional scaling (MDS) plot visualizing principal component analysis in two dimensions. Tumor samples with similar gene expression profiles were clustered together.