Summary statistics for pbtype dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 5,376 25.45499 15.98155 1 56 st_case | 5,376 255256.7 159724.7 10022 560061 veh_no | 5,376 0 0 0 0 per_no | 5,376 1.089844 .3956991 1 8 pbptype | 5,376 5.195871 .5578611 5 8 -------------+--------------------------------------------------------- pbage | 5,376 49.23884 71.93101 0 999 pbsex | 5,376 1.296503 .4680239 1 9 pbcwalk | 5,376 .7327009 2.203966 0 9 pbswalk | 5,376 1.431176 2.997876 0 9 pbszone | 5,376 .6525298 2.326108 0 9 -------------+--------------------------------------------------------- pedctype | 5,376 537.5528 294.1694 0 910 bikectype | 5,376 34.52511 121.2568 0 980 pedloc | 5,376 3.191034 1.798956 1 9 bikeloc | 5,376 6.451823 1.555277 1 9 pedpos | 5,376 12.0744 23.91539 1 77 -------------+--------------------------------------------------------- bikepos | 5,376 6.388579 1.785589 1 9 peddir | 5,376 7.036086 2.084494 1 9 bikedir | 5,376 6.417225 1.755532 1 9 motdir | 5,376 6.631324 2.362548 1 9 motman | 5,376 6.66276 2.249613 1 9 -------------+--------------------------------------------------------- pedleg | 5,376 6.616443 2.560491 1 9 pedsnr | 0 pedcgp | 5,376 547.9036 323.5516 0 990 bikecgp | 5,376 34.46057 122.3898 0 990 by Jean Roth , jroth@nber.org , 18 Apr 2016