Summary statistics for accident dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 38,444 27.27273 16.23607 1 56 county | 38,444 88.58639 90.99287 0 999 month | 38,444 6.689626 3.3737 1 12 day | 38,444 15.76725 8.993585 1 99 hour | 38,444 13.40079 10.70168 0 99 -------------+--------------------------------------------------------- minute | 38,444 28.63568 18.70246 0 99 ve_forms | 38,444 1.527651 .7662877 1 42 persons | 38,444 2.620955 1.896172 1 50 peds | 38,444 .1607793 .431724 0 11 nhs | 38,444 .328842 .5994209 0 9 -------------+--------------------------------------------------------- road_fnc | 38,444 7.949589 6.488491 1 99 route | 38,444 3.531214 1.788694 1 9 sp_jur | 38,444 .0300177 .3338758 0 9 harm_ev | 38,444 17.77721 13.40641 1 99 man_coll | 38,444 1.637343 4.793365 0 99 -------------+--------------------------------------------------------- rel_junc | 38,444 1.863802 3.303477 1 99 rel_road | 38,444 2.545417 5.132847 1 99 traf_flo | 38,444 1.635054 1.16462 1 9 no_lanes | 38,444 2.468318 1.102013 1 9 sp_limit | 38,444 50.66952 14.71791 0 99 -------------+--------------------------------------------------------- alignmnt | 38,444 1.310217 .7904291 1 9 profile | 38,444 1.468578 1.239466 1 9 pave_typ | 38,444 2.099105 1.066896 1 9 sur_cond | 38,444 1.281865 .875725 1 9 tra_cont | 38,444 4.533555 11.94949 0 99 -------------+--------------------------------------------------------- t_cont_f | 38,444 .7049995 1.362114 0 9 hit_run | 38,444 .0735876 .3846826 0 4 lgt_cond | 38,444 1.793466 1.051123 1 9 weather | 38,444 1.293908 1.062128 1 9 c_m_zone | 38,444 .035116 .268168 0 4 -------------+--------------------------------------------------------- not_hour | 38,444 41.935 41.89096 0 99 not_min | 38,444 51.9487 37.2521 0 99 arr_hour | 38,444 41.36513 41.69137 0 99 arr_min | 38,444 53.59057 37.66117 0 99 hosp_hr | 38,444 52.95747 46.12366 0 99 -------------+--------------------------------------------------------- hosp_mn | 38,444 57.642 43.3989 0 99 sch_bus | 38,444 .0032515 .0569297 0 1 cf1 | 38,444 .9186609 6.203359 0 99 cf2 | 38,444 .3065498 5.306314 0 99 cf3 | 38,444 .282983 5.267479 0 99 -------------+--------------------------------------------------------- fatals | 38,444 1.114244 .4168573 1 15 day_week | 38,444 4.146499 2.112001 1 9 drunk_dr | 38,444 .3898398 .6029191 0 7 st_case | 38,444 273491.6 162238.4 10001 560142 city | 38,444 1012.613 1809.693 0 9999 -------------+--------------------------------------------------------- milept | 38,444 13397.86 33636.02 0 99999 year | 38,444 2004 0 2004 2004 tway_id | 0 tway_id2 | 0 rail | 0 -------------+--------------------------------------------------------- latitude | 36,569 36.69134 5.133935 19.06265 71.28841 longitud | 36,569 -92.02276 15.66915 -1000.678 -67.08784 by Jean Roth , jroth@nber.org , 18 Apr 2016