Frequencies for first 10,000 rows of loncar variable in nsrd dataset :

  Longitude |
   Cardinal |
Direction ( |
   E or W ) |      Freq.     Percent        Cum.
------------+-----------------------------------
          W |     10,000      100.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Jun 2016