Frequencies for first 10,000 rows of vdayr variable in nhamcsed1999 dataset :

day of week |
 of visit - |
    recoded |      Freq.     Percent        Cum.
------------+-----------------------------------
     Sunday |      1,462       14.62       14.62
     Monday |      1,525       15.25       29.87
    Tuesday |      1,426       14.26       44.13
  Wednesday |      1,378       13.78       57.91
   Thursday |      1,362       13.62       71.53
     Friday |      1,391       13.91       85.44
   Saturday |      1,456       14.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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