Fig. 7
![Fig. 7](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12920-015-0114-0/MediaObjects/12920_2015_114_Fig7_HTML.gif)
The plot of a receiver-operating characteristic (ROC) curve. The average area under the curve (AUC) of ~0.81 denotes the accuracy of the signature of key hub genes in the test dataset. The ROC curve depicts a true positive rate (sensitivity) versus a false positive rate (one minus specificity). The diagonal line in the ROC plot has an AUC value of 0.5, representing the predictive power of a random guess. The graph was rendered in the ROCR software