Table 2 Table of functional links between recreation and residence for a particular user.

From: Comprehensive strength evaluation system of commercial centres based on multi-source data: a case of Hefei central city

User number

Date

Longitude and latitude of base station in the recreation area

Longitude and latitude of the base station at the place of residence

Start time of stay

End time of stay

Stay time (min)

1

05.15

31.819xxx,117.229xxx

31.735xxx,117.340xxx

10:38:44

11:53:04

75

1

05.15

31.837xxx,117.280xxx

31.735xxx,117.340xxx

14:23:24

16:01:35

38

1

05.15

31.855xxx,117.251xxx

31.735xxx,117.340xxx

19:59:02

21:45:12

106

1

05.16

31.864xxx,117.282xxx

31.735xxx,117.340xxx

13:15:42

14:08:50

53

1

05.16

31.846xxx,117.216xxx

31.735xxx,117.340xxx

18:57:41

20:54:44

117