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Fig. 7 | BMC Medical Genomics

Fig. 7

From: Transcriptomic analysis reveals pathophysiological relationship between chronic obstructive pulmonary disease (COPD) and periodontitis

Fig. 7

Feature genes selected by using RFE algorithm for periodontitis (CP) (A) and chronic obstructive pulmonary disease (COPD) (B). The abscissa of the figure is the variable of the number of genes, and the ordinate is the exact value of the whole data set measured under this variable. The results show that when the minimum variable is 6, the score is high, which means that 6 features could map the entire dataset. (C) and (D) the receiver operation curve (ROC) of 3 crosstalk marker genes and the combination for the 3 genes based on the average expression value in CP and COPD, respectively

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