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Table 2 Comparison between SAM and RAF in finding genes differentially expressed among four classes in a simulated data set of small sample size (n = 4)

From: Ranking analysis of F-statistics for microarray data

SAM RAF
Delta Number of significances Number of false positives Estimated FDR Delta Number of significances Number of false positive Estimated FDR True FDR
0.037534 10 5.6 0.56 0.01253 16 6 0.375 0.125
0.044668 10 5.6 0.56 0.37608 13 4 0.308 0.077
0.045738 10 5.6 0.56 0.74013 13 3 0.231 0.077
0.050144 9 4.7 0.52 1.10516 12 2 0.167 0.083
0.052423 9 4.7 0.52 1.47167 11 1 0.091 0
0.055937 9 4.7 0.52 1.84017 10 1 0.100 0
0.059564 9 4.7 0.52 2.58527 9 0 0 0
0.060798 9 4.7 0.52      
0.062046 9 4.7 0.52      
0.063305 0 0 0