Summary statistics for accident dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 521 43 0 43 43 county | 521 72 0 72 72 month | 521 6.571977 3.615552 1 12 day | 521 15.65643 8.834537 1 31 hour | 521 12.59309 7.504836 0 24 -------------+--------------------------------------------------------- minute | 521 24.17274 16.83291 0 58 ve_forms | 521 1.395393 .5793713 1 4 persons | 521 2.558541 1.725635 1 28 peds | 521 .4241843 .6403954 0 5 nhs | 521 .2552783 .4364366 0 1 -------------+--------------------------------------------------------- road_fnc | 521 9.328215 5.201123 1 16 route | 521 3.389635 1.208865 1 4 sp_jur | 521 0 0 0 0 harm_ev | 521 14.75624 10.78532 1 43 man_coll | 521 1.003839 1.61006 0 6 -------------+--------------------------------------------------------- rel_junc | 521 1.071017 .2571006 1 2 rel_road | 521 2.305182 2.092328 1 6 traf_flo | 521 2.051823 .6983508 1 4 no_lanes | 521 2.641075 1.097095 1 6 sp_limit | 521 41.2476 9.666463 15 55 -------------+--------------------------------------------------------- alignmnt | 521 1.165067 .371598 1 2 profile | 521 1.28023 .5702334 1 3 pave_typ | 521 1.93858 .2403305 1 2 sur_cond | 521 1.136276 .3434116 1 2 tra_cont | 521 .3224568 2.188179 0 20 -------------+--------------------------------------------------------- t_cont_f | 521 .1266795 .6038963 0 3 hit_run | 521 .1420345 .5142011 0 3 lgt_cond | 521 2.099808 1.01414 1 5 weather | 521 1.132438 .3392917 1 2 c_m_zone | 521 0 0 0 0 -------------+--------------------------------------------------------- not_hour | 521 45.96161 46.98443 0 99 not_min | 521 49.79079 45.17892 0 99 arr_hour | 521 46.29942 47.0455 0 99 arr_min | 521 50.99808 44.89229 0 99 hosp_hr | 521 59.67562 48.48005 0 99 -------------+--------------------------------------------------------- hosp_mn | 521 59.77159 48.42107 0 99 sch_bus | 521 0 0 0 0 cf1 | 521 .0767754 1.237964 0 20 cf2 | 521 0 0 0 0 cf3 | 521 0 0 0 0 -------------+--------------------------------------------------------- fatals | 521 1.090211 .3361549 1 4 day_week | 521 4.082534 2.214225 1 7 drunk_dr | 521 .4856046 .6565382 0 3 st_case | 521 430261 150.544 430001 430521 city | 521 518.142 327.9418 20 1060 -------------+--------------------------------------------------------- milept | 521 5792.046 22897.65 0 99999 year | 521 2000 0 2000 2000 tway_id | 0 rail | 0 latitude | 0 -------------+--------------------------------------------------------- longitud | 0 by Jean Roth , jroth@nber.org , 18 Apr 2016