Frequencies for first 10,000 rows of othtst1 variable in nhamcsopd1996 dataset : other test | - icd-9-cm | procedure - | 4 dgt | Freq. Percent Cum. ------------+----------------------------------- 0000 | 9,860 98.60 98.60 1229 | 1 0.01 98.61 4011 | 1 0.01 98.62 7534 | 26 0.26 98.88 7535 | 4 0.04 98.92 8840 | 3 0.03 98.95 8911 | 11 0.11 99.06 8913 | 2 0.02 99.08 8914 | 7 0.07 99.15 8915 | 1 0.01 99.16 8937 | 1 0.01 99.17 8938 | 4 0.04 99.21 8939 | 3 0.03 99.24 8944 | 1 0.01 99.25 8952 | 25 0.25 99.50 9032 | 3 0.03 99.53 9033 | 1 0.01 99.54 9099 | 2 0.02 99.56 9142 | 1 0.01 99.57 9146 | 5 0.05 99.62 9162 | 1 0.01 99.63 9192 | 2 0.02 99.65 9201 | 1 0.01 99.66 9214 | 3 0.03 99.69 9307 | 1 0.01 99.70 9308 | 1 0.01 99.71 9357 | 4 0.04 99.75 9408 | 4 0.04 99.79 9505 | 1 0.01 99.80 9509 | 2 0.02 99.82 9511 | 11 0.11 99.93 9512 | 1 0.01 99.94 9541 | 3 0.03 99.97 9547 | 1 0.01 99.98 9999 | 2 0.02 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016