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Table 2 Comparison of results between stability-based and FDR-adjusted methods for the spiked-in data set for four selection methods (true biomarkers in italics font)

From: Performance of variable selection methods using stability-based selection

Method

Test statistic

Biomarkers selected

pAUCa, sensitivity

1-Specificity

Stability (0.5)

VIP

Gly Ser Thr Ala Val Lys 20 36 24 13 42 23 41 44 57 19 Asp

0.875

0.169

 

Student t test

Gly Ser Thr Ala Val Lys 20 36 13 23 42 41 Asp 44 57 24 48

0.875

0.169

 

Lasso

Gly Ala Val 20 23 Thr 21

0.5

0.034

 

Elastic net

Gly Ala Val 23 20 Thr

0.5

0.051

FDR

Student t test P values <0.05

Gly Ser Thr Ala Val Lys 25

0.75

0.034

 

VIP P values adj <0.05

–

0

0

  1. a pAUC Partial area under the receiver operating characteristic curve (0.2)