Frequencies for first 10,000 rows of vdayr variable in nhamcsopd1997 dataset :

day of week |
 of visit - |
     recode |      Freq.     Percent        Cum.
------------+-----------------------------------
     Sunday |        103        1.03        1.03
     Monday |      2,010       20.10       21.13
    Tuesday |      2,013       20.13       41.26
  Wednesday |      2,163       21.63       62.89
   Thursday |      1,992       19.92       82.81
     Friday |      1,557       15.57       98.38
   Saturday |        162        1.62      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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