写DMI中PDI小于其他3个的公式

{N:14,M:6}
TR:=EXPMEMA(MAX(MAX(HIGH-LOW,ABS(HIGH-REF(CLOSE,1))),ABS(REF(CLOSE,1)-LOW)),N);
HD :=HIGH-REF(HIGH,1);
LD :=REF(LOW,1)-LOW;
DMP:=EXPMEMA(IF(HD>0&&HD>LD,HD,0),N);
DMM:=EXPMEMA(IF(LD>0&&LD>HD,LD,0),N);
PDI:=DMP*100/TR;
MDI:=DMM*100/TR;
ADX:=EXPMEMA(ABS(MDI-PDI)/(MDI+PDI)*100,M);
ADXR:=EXPMEMA(ADX,M);
选股:PDI<MDI AND PDI<ADX AND PDI<ADXR;