Frequencies for first 10,000 rows of lab_temp_tstg_site_sw variable in posclia2016 dataset : Multiple | Site | Exception: | Temporary | Testing S | Freq. Percent Cum. ------------+----------------------------------- N | 9,842 98.42 98.42 Y | 158 1.58 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 10 Jan 2017