Frequencies for first 10,000 rows of hivaids variable in snp2019 dataset : HIV/AIDS | Freq. Percent Cum. ------------+----------------------------------- | 9,992 99.92 99.92 * | 8 0.08 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 15 Feb 2019