Frequencies for first 10,000 rows of incntr_nctrnl_srvc_sw variable in pos2018 dataset : In-Center | Nocturnal | Hemodialysi | s Services | In | Freq. Percent Cum. ------------+----------------------------------- | 8,991 89.91 89.91 N | 976 9.76 99.67 Y | 33 0.33 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 15 Feb 2019