Frequencies for CE_CANCER_IMMUNE variable in hcccoefn dataset :

CE_CANCER_I |
      MMUNE |      Freq.     Percent        Cum.
------------+-----------------------------------
      1.101 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

by Jean Roth , jroth@nber.org , 23 Mar 2017