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Table 1

Group matching between Tully (2015b) and FoF (this work) catalogues.

Tully (2015b) FoF (this work)
Sample Ngroups Fraction Ngroups Fraction

0 matches 1087 17.5% 286 4.6%
1 match 4484 72.3% 5838 93.1%
2 matches 437 7.1% 137 2.2%
3+ matches 194 3.1% 6 0.1%

Total 6202 100% 6267 100%

Notes. The match is based either on the Tully or the FoF catalogue, as described in the text. The number and fraction of groups with zero, one, two or more matches in the respective comparison catalogue are shown.

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