Summary statistics for accident dataset :

by Jean Roth , jroth@nber.org , 22 Apr 2016

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
       state |        458          43           0         43         43
      county |        458          72           0         72         72
       month |        458    6.724891    3.531458          1         12
         day |        458    16.08297    9.086606          1         31
        year |        458          81           0         81         81
-------------+---------------------------------------------------------
        hour |        458    14.02183    7.226529          0         24
      minute |        458    23.29258    17.14418          0         58
    ve_forms |        458    1.218341    .6683955          0          3
     persons |        458    2.401747    1.531635          1         10
    vehicles |        458    1.318777    .5484382          1          3
-------------+---------------------------------------------------------
    land_use |        458    1.582969    .4936072          1          2
     cl_tway |          0
    road_fnc |        458      5.0131    2.243357          2          8
     ta_1_cl |        458    4.823144    2.431861          2          8
      sp_jur |        458           0           0          0          0
-------------+---------------------------------------------------------
     harm_ev |        458    13.11135    7.139332          1         33
    man_coll |        458     .709607    1.467651          0          9
    rel_junc |        458    1.227074     .614173          1          6
    rel_road |        458    2.144105    1.689515          1          9
    road_flo |        458    3.604803    .9716658          1          5
-------------+---------------------------------------------------------
    no_lanes |        458    2.434498    .9660936          1          9
    sp_limit |        458    36.51747    8.951652         10         55
    alignmnt |        458    1.161572    .3684602          1          2
     profile |        458    1.242358    .4289784          1          2
    pave_typ |        458    1.831878    .3743838          1          2
-------------+---------------------------------------------------------
    sur_cond |        458    1.174672    .3801019          1          2
    tra_cont |        458    7.233624    24.92861          0         98
    lgt_cond |        458     2.00655     1.01086          1          5
     weather |        458      1.0131    .1138293          1          2
     hit_run |        458    .2270742      .62477          0          2
-------------+---------------------------------------------------------
    c_m_zone |        458    .0043668    .0660095          0          1
    not_hour |        458    22.48035    41.52051          0         99
     not_min |        458    22.48035    41.52051          0         99
    arr_hour |        458    22.48035    41.52051          0         99
     arr_min |        458    22.48035    41.52051          0         99
-------------+---------------------------------------------------------
     sch_bus |        458    .0043668    .0660095          0          1
         cf1 |        458     .558952    4.252663          0         51
         cf2 |        458           0           0          0          0
         cf3 |        458           0           0          0          0
      fatals |        458    1.098253    .4644439          1          7
-------------+---------------------------------------------------------
    day_week |        458    4.340611    2.229141          1          7
    drunk_dr |        458    .2445415     .469208          0          3
     st_case |        458    430231.8    133.3568     430001     430462
        city |        458    521.4279    327.0954         10       1060
        rail |          0

by Jean Roth , jroth@nber.org , 22 Apr 2016