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Edson, try this formula:
---8<-------------------------------
delay:=1;
a1:=Mov(C,8,E);
a2:=Mov(C,21,E);
b1:=Ref(Mov(C,100,E),-50);
{-----------------------------------}
z2:=Ref(Cross(a1,a2),-delay); {Buy}
z4:=Ref(Cross(a2,a1),-delay); {Sell}
{-----------------------------------}
{ Buy/Sell Signals }
Buy:=z2 AND C<b1;
Sell:=z4 AND C>b1;
signals:=Buy-Sell;
{ Buy/Sell Expert Signals }
{Signals=1;} { Up Blue arrow }
{Signals=-1;} { Down Red arrow }
{ Indicator composite Buy/Sell signal }
Signals
---8<-------------------------------
jose '-)
http://www.metastocktools.com
--- In equismetastock@xxxxxxxxxxxxxxx, "Edson L F" <edsonlf@xxx>
wrote:
>
> Hi,
> How to make a filter in the "Symbols" of the "Expert Advisor" to
filter inadequate signals of cross above or below of the a curve?
> Ex:
>
> a1:=Mov(C;8,E);
> a2:=Mov(C,21,E);
> b1:=Ref( Mov(C,100,E) , -50);
> {-----------------------------------}
> z1:=Cross(a1,a2);
> z2:=Ref(z1,-1); {Buy}
> z3:=Cross(a2,a1);
> z4:=Ref(z3,-1); {Sell}
> {-----------------------------------}
> {Filtro}
> k1:=if( z2<b1, z2, ???); {so that it gives the signal of purchase
below of b1 }
> k2:=if( z4>b1, z4, ???); {so that it gives the signal of venda above
of b1 }
> k1; {Buy}
> k2; {Sell}
>
> Thanks for any advice.
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