Summary statistics for accident dataset :

by Jean Roth , jroth@nber.org , 18 Apr 2016

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
       state |        531          43           0         43         43
      county |        531    73.74576    40.22837         72        999
       month |        531    6.284369    3.493946          1         12
         day |        531    15.43691     8.90099          1         31
        hour |        531    12.36535     8.48118          0         99
-------------+---------------------------------------------------------
      minute |        531    23.90584    17.33571          0         99
    ve_forms |        531    1.365348    .5547776          1          4
     persons |        531    2.425612    1.313078          1         11
        peds |        531    .4180791    .5582764          0          4
         nhs |        531     .259887     .438986          0          1
-------------+---------------------------------------------------------
    road_fnc |        531    9.693032    5.154768          1         16
       route |        531    3.451977    1.184432          1          6
      sp_jur |        531           0           0          0          0
     harm_ev |        531    15.12241    10.71122          1         43
    man_coll |        531    1.082863    1.790095          0          6
-------------+---------------------------------------------------------
    rel_junc |        531    1.067797    .2516336          1          2
    rel_road |        531    2.389831    2.151044          1         10
    traf_flo |        531    2.067797    .6609874          1          4
    no_lanes |        531    2.693032    1.141799          1          6
    sp_limit |        531    41.06403    9.602852         15         55
-------------+---------------------------------------------------------
    alignmnt |        531    1.148776     .356203          1          2
     profile |        531    1.290019    .5913482          1          3
    pave_typ |        531    1.909605    .2870179          1          2
    sur_cond |        531    1.161959    .3738418          1          3
    tra_cont |        531    .2354049    1.793897          0         20
-------------+---------------------------------------------------------
    t_cont_f |        531    .1073446    .5577606          0          3
     hit_run |        531    .1694915    .5575312          0          3
    lgt_cond |        531    2.097928    .9875716          1          5
     weather |        531    1.160075    .3670217          1          2
    c_m_zone |        531    .0018832    .0433963          0          1
-------------+---------------------------------------------------------
    not_hour |        531    50.63465     47.0697          0         99
     not_min |        531    54.00753    45.28288          0         99
    arr_hour |        531    50.67608    47.03797          0         99
     arr_min |        531     53.9774    45.35087          0         99
     hosp_hr |        531    63.38983    47.55609          0         99
-------------+---------------------------------------------------------
     hosp_mn |        531    63.38983    47.55609          0         99
     sch_bus |        531    .0037665    .0613137          0          1
         cf1 |        531           0           0          0          0
         cf2 |        531           0           0          0          0
         cf3 |        531           0           0          0          0
-------------+---------------------------------------------------------
      fatals |        531    1.050847    .2364323          1          3
    day_week |        531    4.148776    2.171534          1          7
    drunk_dr |        531    .4387947    .6306044          0          3
     st_case |        531    430270.7    154.6895     430002     430538
        city |        531    535.0734    332.5902          0       1060
-------------+---------------------------------------------------------
      milept |        531    6056.625    23417.39          0      99999
        year |        531        1999           0       1999       1999
     tway_id |          0
        rail |          0
    latitude |          0
-------------+---------------------------------------------------------
    longitud |          0

by Jean Roth , jroth@nber.org , 18 Apr 2016