Summary statistics for Rx_NE_LTI_NESRD_OD_x_M68 variable in rxcoeff dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- Rx_NE_LTI_.. | 1 1.804 . 1.804 1.804 by Jean Roth , jroth@nber.org , 23 Mar 2017