主升浪启动前兆-连阳双倍量（选股指标）

指标思路：阶段底部缩量筑底后，突然出现双倍量柱，同时K线上出现连阳、连涨之后，短线极有可能走出一波漂亮的“主升浪”行情！
 指标为原创选股指标，有大智慧和通达信2个版本。
 
{连阳双倍量}

{大智慧版选股}
PA1:=all(C>O,3) AND C>REF(C,1) AND REF(C,1)>REF(C,2);
PA2:=V/REF(V,1)>1.85;
PA3:=REF(V,1)/REF(V,2)>1.85;
PA4:=REF(V,1)<MAX(MA(V,40),MA(V,135));
JX:=C>MA(C,5) AND C>MA(C,10) AND C>MA(C,20) AND C>MA(C,30);
XG:PA1 AND PA2 AND PA3 AND PA4 AND JX;

{通达信版选股}
PA1:=EVERY(C>O,3) AND C>REF(C,1) AND REF(C,1)>REF(C,2);
PA2:=V/REF(V,1)>1.85;
PA3:=REF(V,1)/REF(V,2)>1.85;
PA4:=REF(V,1)<MAX(MA(V,40),MA(V,135));
JX:=C>MA(C,5) AND C>MA(C,10) AND C>MA(C,20) AND C>MA(C,30);
XG:PA1 AND PA2 AND PA3 AND PA4 AND JX;