“逆向KDJ副图”是一款融合经典KDJ逻辑与趋势反转判断的智能副图指标。
它通过双通道计算——一方面基于价格四价加权构建自适应波动区间（WDDK4），另一方面结合传统随机指标优化平滑处理（WDDK7~WDDK9），形成双重验证机制。
当高位出现WDDK4回落且趋势线拐头向下时，系统标记“←顶”卖出信号；
反之，在低位WDDK4回升叠加趋势线底部反转，则提示“←底”买入机会。
配合红绿渐变柱状图与动态箭头图标，直观展现多空动能转换。
该公式特别适合震荡市中识别阶段性高点与低点，帮助投资者规避追高杀跌，实现逆向操作、稳中求胜。
WDDK1:=(2*CLOSE+HIGH+LOW)/4;
WDDK2:=LLV(LOW,34);
WDDK3:=HHV(HIGH,34);
WDDK4:=EMA((WDDK1-WDDK2)/(WDDK3-WDDK2)*100,13);
WDDK5:=EMA(1*REF(WDDK4,1)+0*WDDK4,2);
WDDK6:=(CLOSE-LLV(LOW,35))/(HHV(HIGH,35)-LLV(LOW,35))*100;
WDDK7:=SMA(WDDK6,13,1);
WDDK8:=SMA(WDDK7,13,1);
WDDK9:=EMA(WDDK8,3);
WDDK10:=WDDK4>70 AND (WDDK4-WDDK5)<0;
WDDK11:=WDDK9<REF(WDDK9,1) AND REF(WDDK9,1)>REF(WDDK9,2);
WDDK12:=WDDK10 AND WDDK11;
DRAWICON(WDDK12,80,2);
DRAWTEXT(WDDK12,WDDK7,'←顶'),COLORRED;
WDDK13:=WDDK4<30 AND (WDDK4-WDDK5)>0;
WDDK14:=WDDK9>REF(WDDK9,1) AND REF(WDDK9,1)<REF(WDDK9,2);
WDDK15:=WDDK13 AND WDDK14;
DRAWICON(WDDK15,20,1);
DRAWTEXT(WDDK15,WDDK8,'←底'),COLORGREEN;
STICKLINE1(EMA(WDDK8,3) > REF(EMA(WDDK8,3),1),EMA(WDDK8,3),REF(EMA(WDDK8,3),1),8,0),COLOR005DFF;
STICKLINE1((WDDK4-WDDK5 > 0),WDDK4,WDDK5,5,0),COLORC00000;
STICKLINE1((WDDK4-WDDK5 > 0),WDDK4,WDDK5,4,0),COLORE00000;
STICKLINE1((WDDK4-WDDK5 > 0),WDDK4,WDDK5,3,0),COLORF00000;
STICKLINE1((WDDK4-WDDK5 > 0),WDDK4,WDDK5,2,0),COLORD00000;
STICKLINE1((WDDK4-WDDK5 > 0),WDDK4,WDDK5,1,0),COLORFF0000;
STICKLINE1((WDDK4-WDDK5 < 0),WDDK4,WDDK5,5,0),COLOR00B500;
STICKLINE1((WDDK4-WDDK5 < 0),WDDK4,WDDK5,4,0),COLOR00C600;
STICKLINE1((WDDK4-WDDK5 < 0),WDDK4,WDDK5,3,0),COLOR00D500;
STICKLINE1((WDDK4-WDDK5 < 0),WDDK4,WDDK5,1,0),COLOR00E600;
STICKLINE1(EMA(WDDK8,3) < REF(EMA(WDDK8,3),1),EMA(WDDK8,3),REF(EMA(WDDK8,3),1),8,0),COLORYELLOW;
