Summary statistics for accident dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 469 43 0 43 43 county | 469 72 0 72 72 month | 469 6.658849 3.451562 1 12 day | 469 15.48614 9.032132 1 31 hour | 469 12.90192 7.606999 0 24 -------------+--------------------------------------------------------- minute | 469 24.37313 17.53785 0 58 ve_forms | 469 1.360341 .6134224 1 6 persons | 469 2.390192 1.394123 1 13 peds | 469 .424307 .5480402 0 4 nhs | 469 .2579957 .4379988 0 1 -------------+--------------------------------------------------------- road_fnc | 469 9.620469 5.060836 1 16 route | 469 3.439232 1.188907 1 6 sp_jur | 469 0 0 0 0 harm_ev | 469 16.24307 11.69377 1 43 man_coll | 469 .8614072 1.55799 0 6 -------------+--------------------------------------------------------- rel_junc | 469 1.046908 .2116683 1 2 rel_road | 469 2.526652 2.174501 1 6 traf_flo | 469 2.098081 .6329423 1 4 no_lanes | 469 2.656716 1.111066 1 6 sp_limit | 469 40.47974 9.08966 15 65 -------------+--------------------------------------------------------- alignmnt | 469 1.202559 .4023354 1 2 profile | 469 1.324094 .6282824 1 3 pave_typ | 469 1.93177 .2524099 1 2 sur_cond | 469 1.140725 .3481089 1 2 tra_cont | 469 .4946695 3.038653 0 20 -------------+--------------------------------------------------------- t_cont_f | 469 .0959488 .5284276 0 3 hit_run | 469 .1492537 .5220608 0 2 lgt_cond | 469 2.117271 .9636005 1 5 weather | 469 1.138593 .34589 1 2 c_m_zone | 469 .0021322 .0461757 0 1 -------------+--------------------------------------------------------- not_hour | 469 50.17697 47.78992 0 99 not_min | 469 52.32623 46.87456 0 99 arr_hour | 469 50.36887 47.80434 0 99 arr_min | 469 52.41151 46.76632 0 99 hosp_hr | 469 59.73774 48.48144 0 99 -------------+--------------------------------------------------------- hosp_mn | 469 59.73774 48.48144 0 99 sch_bus | 469 0 0 0 0 cf1 | 469 0 0 0 0 cf2 | 469 0 0 0 0 cf3 | 469 0 0 0 0 -------------+--------------------------------------------------------- fatals | 469 1.055437 .2382209 1 3 day_week | 469 4.17484 2.200264 1 7 drunk_dr | 469 .5053305 .6458888 0 3 st_case | 469 430235.5 135.9647 430001 430470 city | 469 547.1471 322.417 10 1060 -------------+--------------------------------------------------------- milept | 469 4469.322 20076.72 0 99999 year | 469 2001 0 2001 2001 tway_id | 0 rail | 0 latitude | 0 -------------+--------------------------------------------------------- longitud | 0 by Jean Roth , jroth@nber.org , 18 Apr 2016