Summary statistics for accident dataset : by Jean Roth , jroth@nber.org , 22 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 45,284 27.98883 15.90241 1 56 county | 45,284 86.62364 93.03363 1 999 month | 45,284 6.785421 3.296445 1 12 day | 45,284 15.73708 8.825705 1 31 year | 45,284 80 0 80 80 -------------+--------------------------------------------------------- hour | 45,284 12.91321 10.02344 0 99 minute | 45,284 25.87404 18.69019 0 99 ve_forms | 45,284 1.40193 .6428155 0 24 persons | 45,284 2.501745 1.660898 1 67 vehicles | 45,284 1.432139 1.005741 1 99 -------------+--------------------------------------------------------- land_use | 45,284 1.623995 .8496336 1 9 cl_tway | 45,284 4.621345 1.838752 1 9 road_fnc | 0 ta_1_cl | 45,284 4.021906 2.468279 1 9 sp_jur | 45,284 .0233857 .3017895 0 9 -------------+--------------------------------------------------------- harm_ev | 45,284 14.2911 8.806614 1 99 man_coll | 45,284 1.053948 1.623272 0 9 rel_junc | 45,284 1.524424 1.192509 1 9 rel_road | 45,284 2.263691 1.684958 1 9 road_flo | 45,284 3.568876 1.285754 1 9 -------------+--------------------------------------------------------- no_lanes | 45,284 2.451815 1.101098 1 9 sp_limit | 45,284 51.68971 19.26768 5 99 alignmnt | 45,284 1.304699 .6563173 1 9 profile | 45,284 1.573713 1.544823 1 9 pave_typ | 45,284 2.581331 2.095934 1 9 -------------+--------------------------------------------------------- sur_cond | 45,284 1.260335 .8337226 1 9 tra_cont | 45,284 8.150671 26.26606 0 99 lgt_cond | 45,284 1.915842 .9879949 1 9 weather | 45,284 1.254792 .9302961 1 9 hit_run | 45,284 .0760975 .3764648 0 3 -------------+--------------------------------------------------------- c_m_zone | 45,284 .0179754 .1695245 0 3 not_hour | 45,284 70.07711 41.74049 0 99 not_min | 45,284 74.44444 36.84443 0 99 arr_hour | 45,284 66.7617 42.74847 0 99 arr_min | 45,284 71.67894 37.72629 0 99 -------------+--------------------------------------------------------- sch_bus | 45,284 .0028708 .0535032 0 1 cf1 | 45,284 3.08535 13.36634 0 99 cf2 | 45,284 1.607808 12.12102 0 99 cf3 | 45,284 1.474737 11.96588 0 99 fatals | 45,284 1.128235 .4445823 1 20 -------------+--------------------------------------------------------- day_week | 45,284 4.276411 2.155982 1 7 drunk_dr | 45,284 .4287607 .5438033 0 3 st_case | 45,284 280807.6 158866.1 10001 560206 city | 45,284 1156.541 2018.557 0 9999 rail | 0 by Jean Roth , jroth@nber.org , 22 Apr 2016