Frequencies for first 10,000 rows of clia_lab_classification_cd_6 variable in p CLIA_LAB_CL | ASSIFICATIO | N_CD_6 | Freq. Percent Cum. ------------+----------------------------------- 0 | 3,795 37.95 37.95 . | 6,205 62.05 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 9 Jan 2018