Frequencies for first 10,000 rows of vdayr variable in nhamcsed1998 dataset :

day of week |
 of visit - |
    recoded |      Freq.     Percent        Cum.
------------+-----------------------------------
     Sunday |      1,390       13.90       13.90
     Monday |      1,511       15.11       29.01
    Tuesday |      1,448       14.48       43.49
  Wednesday |      1,380       13.80       57.29
   Thursday |      1,412       14.12       71.41
     Friday |      1,384       13.84       85.25
   Saturday |      1,475       14.75      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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