Frequencies for first 10,000 rows of vdayr variable in nhamcsopd2000 dataset :

day of week |
 of visit - |
     recode |      Freq.     Percent        Cum.
------------+-----------------------------------
     Sunday |        118        1.18        1.18
     Monday |      2,076       20.76       21.94
    Tuesday |      1,984       19.84       41.78
  Wednesday |      1,983       19.83       61.61
   Thursday |      2,018       20.18       81.79
     Friday |      1,599       15.99       97.78
   Saturday |        222        2.22      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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