opened on:   4 Jan 2016, 13:08:58

_dta:
  1.  by Jean Roth , jroth@nber.org , 2012-10-10
  2.  by Jean Roth , jroth@nber.org , 18 Aug 2014
  3.  Census 2000 SF1 Summary Level 160
  4.  Unique identifier is state place
  5.  Distances between Place that are within 50000 miles

> s.dta
  obs:   643,865,250                          
 vars:             5                          18 Aug 2014 16:40
 size:14,165,035,500                          (_dta has notes)
-------------------------------------------------------------------------------
              storage   display    value
variable name   type    format     label      variable label
-------------------------------------------------------------------------------
state1          str2    %9s                   FIPS State 1
place1          str5    %9s                   FIPS Place 1
mi_to_place     double  %10.0g                Distance between places that are
                                                within 50000 miles
state2          str2    %9s                   FIPS State 2
place2          str5    %9s                   FIPS Place 2
-------------------------------------------------------------------------------
Sorted by: state1  place1  mi_to_place  state2  place2