& xx_shifwflx_remo_intercept, xx_shifwflx_remo_slope,
& xx_shifwflx_remo_intercept, xx_shifwflx_remo_slope
_RL xx_shifwflx_remo_intercept,xx_shifwflx_remo_slope
xx_shifwflx_remo_intercept=0. _d 0