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以下是通达信趋势波段指标公式（无源码的请下载附件导入）
买线:=EMA(C,2);
卖线:=EMA(SLOPE(C,21)*20+C,42);
BU:=CROSS(买线,卖线);
SEL:=CROSS(卖线,买线);
一发千钧指导线: EMA((EMA(CLOSE,4)+EMA(CLOSE,6)+EMA(CLOSE,12)+EMA(CLOSE,24))/4,2),LINETHICK1,COLORFFFFFF;
谦穗临界点: MA(CLOSE,27),LINETHICK1,COLOR00FFFF;{www.88gs.com}
DRAWBAND(一发千钧指导线,RGB(255,0,0),谦穗临界点,RGB(0,255,0));
DRAWICON(IF(HHV(SUM(IF(C<WMA(C,2),V,0),4)/SUM(IF(C>WMA(C,2),V,0),4),5)>4 AND CROSS(2,SUM(IF(C<WMA(C,2),V,0),4)/SUM(IF(C>WMA(C,2),V,0),4)) AND C>=O,1,0),谦穗临界点*0.98,11);
EXPMA(C,2);
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