通达信OBV买点副图源码

一个OBV买点指标参考:
 
源码：
 
N:=10;M:=30;
 VA:=IF(CLOSE>REF(CLOSE,1),VOL,-VOL);
 OBV:SUM(IF(CLOSE=REF(CLOSE,1),0,VA),0);
 OBV1:MA(OBV,N);
 OBV2:MA(OBV,M);
 
买点1:CROSS(OBV,OBV2) AND SUM(OBV,20)<SUM(OBV2,20),COLORGREEN,NODRAW;
 DRAWICON(买点1,OBV2,27);
 买点2:CROSS(OBV1,OBV2),COLORMAGENTA,NODRAW;
 DRAWICON(买点2,OBV2,25);