Frequencies for first 10,000 rows of obsed variable in nhamcsed2007 dataset :

  is your observation/clinical decision |
    unit administratively part of ed or |
                                 inpati |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                  blank |        650        6.50        6.50
                                unknown |         96        0.96        7.46
                         not applicable |      5,564       55.64       63.10
                         part of the ed |      2,726       27.26       90.36
part of the inpatient side of the hospi |        964        9.64      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016