<P> </P>{参数设置：N(2,300;20)};<BR>{公式特点：用【一阶原点矩】构造【股价(股指)标准差】,}<BR>{公式性能因而远超“经典布林带”和系统自带的“BOLL_M”};<BR>M1:=((EMA(C,12)-EMA(C,26))/EMA(C,12)+1)*N,NODRAW;<BR>DIF:=MA(((EMA(C,12)-EMA(C,26))/EMA(C,12)+1)*C,M1);<BR><BR>M:EMA("KDJ.K"(9,3,3)/100+"KDJ.D"(9,3,3)/100,N)*N,NODRAW;<BR>M_A:=SUM(C,M)/SUM(1,M);{此式有利看新股}<BR>{M_A:=MA(C,N);备用,当上市交易日数>=N时与上式等值};<BR>CQ:=ABS(C);<BR>SD1:=SQRT(SUM((C-M_A)*(C-M_A)*CQ/SUM(CQ,M),M));<BR>SD2:=SQRT(SUM((C-M_A)*(C-M_A)*CQ,M)/SUM(CQ,M));<BR>SD:=(SD1+SD2)/2;{其实SD1、SD2无原理性区别，但有个截尾误差}<BR>顶线:M_A+2*SD;<BR>强线:M_A+SD;<BR>中线:M_A,LINETHICK1;<BR>弱线:M_A-SD;<BR>底线:M_A-2*SD;<BR>
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