通达信非常好用的RSI通道公式

M 2 100 12
 N 2 50 6

以上参数请自行设定

源码

LC:=REF(C,1);
 RS1:SMA(MAX(C-LC,0),12,1)/SMA(ABS(C-LC),12,1)*100;
 SM:MA(RS1,20),COLORFF00FF,NODRAW;
 SU:SM+2*STD(RS1,20),COLORFFFF00,NODRAW;
 SD:SM-2*STD(RS1,20),COLOR00FF00,NODRAW;
 ATR:=MA(MAX(MAX((RS1-RS1),ABS(REF(RS1,1)-RS1)),ABS(REF(RS1,1)-RS1)),15);
 VM:MA(RS1,6),COLORFF00FF,NODRAW;
 VU:VM+2.3*ATR,COLORFFFFFF,NODRAW;
 VD:VM-2.1*ATR,COLOR00FFFF,NODRAW;
 DRAWBAND(SU,RGB(0,170,140),SD,RGB(0,170,140));
 DRAWBAND(VU,RGB(220,220,220),VD,RGB(220,220,220));
 MA1:MA(RS1,6),COLOR000000;
 MA2:MA(RS1,13),COLORFF0000,LINETHICK2;
 RSI:RS1,COLORRED,LINETHICK2;