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Table 5 Metabolites with non-zero weights in the two selected solutions

From: A flexible framework for sparse simultaneous component based data integration

  metabolite f L = 0.5 f L = 1
C1 3,5-dihydroxypentanoate: 0.68 0.88
C1 valine: 0.58 0.20
C1 3-phenyllactate or isomer: 0.55 1.21
C1 isoleucine: 0.48  
C1 tyrosine: 0.41 0.03
C1 phenylalanine: 0.40  
C1 unknown mass 304, 319 and 406: 0.01  
C1 spectrum not complete6: -0.06  
C1 mixed spectrum3: -0.43 0.36
C1 keto-gluconate (?): -0.46 0.25
C2 fumarate: 1.40 1.99
C2 malate: 0.96 1.06
C2 aspartate: 0.42  
C2 monomethylphosphate: 0.39  
C2 C18:1 fatty acid3: 0.37 0.19
C2 unknown1: 0.37  
C2 spectrum not complete4: 0.20  
C2 mixed spectrum2: 0.19  
C2 glycerate: 0.14  
C2 unknown20: 0.02  
C3 lactate: 1.23 2.18
C3 pyruvate: 0.71 0.39
C3 disaccharide12: 0.49 0.11
C3 3-dehydroquinate: 0.38  
C3 disaccharide8: 0.33  
C3 citrate: 0.29  
C3 disaccharide9: 0.27  
C3 unknown mass 318 and 420: 0.17  
C3 unknown mass 217 and 191: 0.17  
C3 disaccharide13: 0.11  
C3 2-hydroxybutanoate: 0.09  
C4 ADP: 1.16 1.01
C4 GDP: 0.96 1.21
C4 UDP-glucose: 0.71 0.14
C4 UTP: 0.34  
C4 unknown27: 0.20  
C4 GMP: 0.20  
C4 FBP: 0.09  
C5 spectrum not found7: 1.41 2.04
C5 guanine: 0.73  
C5 orotate: 0.51 0.34
C5 spectrum not complete5: 0.31  
C5 mixed spectrum6: 0.24  
C5 N-acetylaspartate   
C5 + beta-phenylpyruvate: 0.23  
C5 thymine: 0.12  
  1. Metabolites with non-zero component weighs for each of the five components (C1 to C5). The component weights of two selected models are shown that differ in the degree of sparsity (f L = 0.5 and f L = 1).