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Table 1 Number of samples included in the analyses and their corresponding city and country of provenance. Table also showed the number of “species”, “family”, and “order” existing in each city

From: Unraveling city-specific signature and identifying sample origin locations for the data from CAMDA MetaSUB challenge

City Country Number of samples Number of samples after quality control Species Family Order
The main dataset
 Auckland (AKL) New Zealand 14 14 133 43 21
 Berlin (BER) Germany 21 21 235 101 51
 Bogota (BOG) Colombia 15 15 703 205 138
 Hamilton (HAM) New Zealand 16 16 141 39 22
 Hong Kong (HGK) China 18 17 289 112 60
 Ilorin (ILR) Nigeria 24 24 230 54 29
 London (LON) U.K. 24 22 48 29 15
 Marseille (MAR) France 10 10 212 85 44
 New York (NYC) U.S.A. 26 26 562 159 83
 Offa (OFA) Nigeria 20 20 349 85 42
 Porto (PXO) Portugal 20 20 286 122 66
 Sacramento (SAC) U.S.A. 18 18 554 208 126
 Sao Paulo (SAO) Brazil 24 24 227 99 54
 Sofia (SOF) Bulgaria 10 10 275 102 49
 Stockholm (STO) Sweden 20 20 186 76 42
 Tokyo (TOK) Japan 25 25 573 173 103
 All cities 305 302 1047 276 180
The mystery dataset
 Brisbane (Bri) Australia 7 6 74 53 32
 Doha (Doh) Qatar 3 3 59 38 24
 Kiev (Kie) Ukraine 8 7 144 80 45
 Oslo (Osl) Norway 12 12 505 148 83
 Paris (Par) France 8 6 136 73 41
 Rio de Janeiro (Rio) Brasil 12 12 343 109 53
 Santiago (San) Chile 6 6 309 113 58
 Vienna (Vie) Austria 5 5 167 72 35
 All cities 61 57 700 188 109