The comparison of the selected metabolites by multi-TGDR frameworks on the whole data and on the reduced data (BF > 40% for both data). A. Venn-diagram for multi-TGDR global. B. Venn-diagram for multi-TGDR local. The whole data: without moderated t-test filtering. The reduced data: with t-test filtering and 72 metabolites were filtered out. The metabolites (indexed by m/z values) in red represent those filtered out by moderated t-tests. The metabolites (indexed by m/z values) in purple represent those selected by multi-TGDR framework on the whole data analysis, but excluded by bagging.