Frequencies for first 10,000 rows of ld_mecs variable in natlterr2008 dataset :

   Meconium |
   Staining |
        RFP |
614=f_ld_me |
      con R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,061       60.61       60.61
          N |      3,892       38.92       99.53
          Y |         47        0.47      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 May 2016