Frequencies for segmentid variable in snp2010 dataset :

 Segment ID |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,714       99.91       99.91
          1 |          5        0.06       99.97
          2 |          3        0.03      100.00
------------+-----------------------------------
      Total |      8,722      100.00

by Jean Roth , jroth@nber.org , 14 Apr 2016