Summary statistics for pbtype dataset : by Jean Roth , jroth@nber.org , 22 Oct 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 6,253 24.98385 16.27841 1 56 st_case | 6,253 250612.3 162660.4 10015 560111 veh_no | 6,253 0 0 0 0 per_no | 6,253 1.147609 .8465765 1 21 pbptype | 6,253 5.203422 .5711174 5 8 -------------+--------------------------------------------------------- pbage | 6,253 54.83416 95.97073 0 999 pbsex | 6,253 1.295698 .5416519 1 9 pbcwalk | 6,253 .3486327 1.295446 0 9 pbswalk | 6,253 .7191748 1.813386 0 9 pbszone | 6,253 .2757077 1.530281 0 9 -------------+--------------------------------------------------------- pedctype | 6,253 532.0569 286.8316 0 910 bikectype | 6,253 32.2925 107.0271 0 980 pedloc | 6,253 3.119783 1.703431 1 9 bikeloc | 6,253 6.434352 1.56202 1 9 pedpos | 6,253 12.16504 24.14215 1 77 -------------+--------------------------------------------------------- bikepos | 6,253 6.331681 1.842837 1 9 peddir | 6,253 7.032145 2.088284 1 9 bikedir | 6,253 6.39485 1.795981 1 9 motdir | 6,253 6.558292 2.379468 1 9 motman | 6,253 6.620502 2.26388 1 9 -------------+--------------------------------------------------------- pedleg | 6,253 6.561171 2.589778 1 9 pedsnr | 0 pedcgp | 6,253 551.7831 322.4609 0 990 bikecgp | 6,253 32.44874 108.6488 0 990 by Jean Roth , jroth@nber.org , 22 Oct 2016