Three Survival-Related Genes of Esophageal Squamous Cell Carcinoma Identified by Weighted Gene Coexpression Network Analysis

Figure 2

Sample clustering and determination of soft-threshold power in the WGCNA. (a) Sample clustering. Clustering dendrogram of samples based on their Euclidean distances. No outlier samples were removed. (b) β decision. Scale-free topology fit R² and series of soft thresholds. The red line indicates an R₂ value of 0.90. (c) Mean connectivity and series of soft thresholds. The red line indicates a mean connectivity value of 0.

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