停损转向指标,股价上穿SAR为买入,下穿为卖出,趋势跟踪
SARSTEP:=0.02; SARMAX:=0.2; SAR:SAR(4,0.02,0.2),CIRCLEDOT; 买入信号:CROSS(CLOSE,SAR); 卖出信号:CROSS(SAR,CLOSE);