Frequencies for Rx_CE_NoLowAged_RXHCC166 variable in rxcoeff dataset : V2Rx_CE_NoL | owAged_RXHC | C166 -- | Migraine | Headaches | Freq. Percent Cum. ------------+----------------------------------- .135 | 1 100.00 100.00 ------------+----------------------------------- Total | 1 100.00 by Jean Roth , jroth@nber.org , 23 Mar 2017