Frequencies for first 10,000 rows of sigmoid variable in namcs2014 dataset :

Sigmoidosco |
         py |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,957       99.57       99.57
        Yes |         43        0.43      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017