Frequencies for first 10,000 rows of proc4r variable in nhamcsopd2010 dataset : procedure | #4 - | numeric | recode | Freq. Percent Cum. ------------+----------------------------------- -9 | 9,845 98.45 98.45 4824 | 1 0.01 98.46 5123 | 1 0.01 98.47 5491 | 1 0.01 98.48 8619 | 3 0.03 98.51 8628 | 1 0.01 98.52 8913 | 2 0.02 98.54 8914 | 2 0.02 98.56 8915 | 1 0.01 98.57 8917 | 2 0.02 98.59 8929 | 1 0.01 98.60 8937 | 1 0.01 98.61 8938 | 80 0.80 99.41 8939 | 2 0.02 99.43 8944 | 1 0.01 99.44 8959 | 19 0.19 99.63 9308 | 2 0.02 99.65 9309 | 1 0.01 99.66 9390 | 2 0.02 99.68 9509 | 27 0.27 99.95 9522 | 1 0.01 99.96 9547 | 2 0.02 99.98 9948 | 1 0.01 99.99 9999 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016