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Table 7 Outliers analysis, in bold the values out of 2.5 percentile on the 2 sides

From: Rings or daggers, axes or fibulae have a different composition? A multivariate study on Central Italy bronzes from eneolithic to early iron age

timeline n.code visual classification Cu% Sn% Pb% Fe% Zn% Sb% Ag% As%
eneolithic 41 Axe, broaded borders 99.9 0 0 0 0 0 0.1 0
eneolithic 60898-1 Axe, flat shape 97.9 0.3 0.4 0.4 0.9 0.1 0.1 0
eneolithic 60898-2 Axe, flat shape 99.5 0 0 0.3 0 0.1 0.1 0
middle bronze 36521 Sword, Pertosa type 85.8 13.3 0.2 0.2 0 0.1 0 0.4
middle to late bronze 27914 Arrowhead, with spigot 82.8 15.6 1.5 0 0 0 0.1 0
middle to late bronze 106647-1 Sword, Allerona type 86 12.8 0.6 0 0 0 0.1 0.6
middle to late bronze 106647-1 Sword, Allerona type 87 12 0.5 0 0 0 0 0.4
middle to late bronze 106647-1 Sword, Allerona type 86.5 12.4 0.6 0 0 0 0 0.5
middle to late bronze 106647-1 Sword, Allerona type 87.9 11.5 0.4 0 0 0 0 0.2
late bronze 67-3 Knife Celano type 82.3 15.5 1.4 0.6 0 0 0.1 0
late bronze 31212 Brooch with eyelet 97.3 2.7 0 0 0 0 0 0
late bronze 6 Brooch with eyelet 96.7 2.1 0.8 0 0 0.1 0.2 0
final bronze 35780 Skull, casting 99.8 0 0 0.2 0 0 0 0
final bronze 31665 Small rod 89.8 7 0.8 0.8 0 0.8 0.7 0
final bronze, 1^ Fe 14228 Leaf shape spearhead 76.3 14.8 7.6 0 0 0.8 0.4 0
final bronze, 1^ Fe 14226-2 Spearhead 83 10.4 5.9 0.5 0 0.1 0.1 0
final bronze, 1^ Fe 14224 Spearhead 79.8 12 7.2 0.3 0.8 0.6 0.2 0
final bronze, 1^ Fe 14218-1 Spearhead 81.8 10 7 0.2 0 0.8 0.2 0
1^ Fe 23924-2 Sword sheath, Guardiavomano type 80.4 16.8 2.6 0 0 0.1 0.1 0
1^ Fe 838-3 Razor, Vulci type 86.8 7.4 4.5 0 0 0.7 0.6 0
1^ Fe 838-22 Razor, Vulci type 87.4 6.6 4.8 0 0 0.7 0.5 0
1^ Fe 838-32 Razor, Vulci type 80.4 13.1 6.3 0 0 0.1 0.1 0
1^Fe 24468-1 Brooch, arc and snake 69.7 17.7 2.2 1.2 9.2 0 0 0
1^Fe 24468-2 Brooch, arc and snake 77.5 14.1 3.3 0 4.8 0.1 0.1 0
1^Fe 24468-4 Brooch, arc and snake 78.7 16.2 4.8 0 0 0.2 0 0
VII-VI a.C. 28871 Iron damascene on bronze wire 78.6 3.1 0 18.3 0 0 0 0
VII-VI a.C. 17101 Iron damascene on bronze brooch 48.1 3.3 0 48.6 0 0 0 0
VII-VI a.C. 17097 Iron damascene on bronze brooch 45.5 4.5 0 49.9 0 0 0 0
V-VI a.C. 25689 Iron damascene on bronze wire 81.1 7.3 0.5 11 0 0 0 0
V-VI a.C. 25689 Iron damascene on bronze wire 78.6 6.7 0.4 14.3 0 0 0 0
   outliers ? (2.5% percentile) 78.57 2.49 0 0 0 0 0 0
   outliers ? (97.5% percentile) 96.72 15.40 5.61 2.03 0.90 0.80 0.40 0.005