Fig. 2

Error verification of DEGs and analyses of characteristic genes. a The gene coefficient diagram and cross validation error graph of LASSO regression analysis.b 10-fold cross-validation of LASSO, when the number of feature genes is 19,the 10 fold cross validation accuracy rate is the highest. c The graph of 14 intersection characteristic genes of LASSO regression analysis and SVM-RFE analysis. d-e ROC curves of 14 characteristic genes. f Expression of 13 characteristic genes between IRI+ and IRI- groups.*** indicates p-value < 0.001,** indicates p-value < 0.01, and * indicates p-value < 0.05