Frequencies for first 10,000 rows of wt_cod variable in demo2005q1 dataset :

       Unit |
abbreviatio |
      n for |
  patient's |
     weight |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,320       63.20       63.20
         KG |      2,141       21.41       84.61
        LBS |      1,539       15.39      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Dec 2015