Frequencies for first 10,000 rows of vdayr variable in nhamcsopd2002 dataset :

day of week |
 of visit - |
    recoded |      Freq.     Percent        Cum.
------------+-----------------------------------
     Sunday |         61        0.61        0.61
     Monday |      1,909       19.09       19.70
    Tuesday |      2,152       21.52       41.22
  Wednesday |      2,243       22.43       63.65
   Thursday |      1,921       19.21       82.86
     Friday |      1,622       16.22       99.08
   Saturday |         92        0.92      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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