Frequencies for first 10,000 rows of temptake variable in namcs2004 dataset :

temperature |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,200       82.00       82.00
          1 |      1,800       18.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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