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>From a quick look, start by using the Trough function for PKB instead
of the Peak function.
Regards,
GP
--- In amibroker@xxxxxxxxxxxxxxx, "Hans" <hansib@xxx> wrote:
>
> Thank you very much, I did it, but result is not a bottom...
> something wrong...
>
> Here is my new code.... working for Tops... but not for bottoms...:
>
> /* Detecting double tops */
> percdiff = 5; /* peak detection threshold */
> fwdcheck = 5; /* forward validity check */
> mindistance = 10;
> validdiff = percdiff/400;
> PK= Peak( H, percdiff, 1 ) == High;
> PKB= Peak( L, percdiff, 1 ) == Low;
>
> x = Cum( 1 );
> XPK1 = ValueWhen( PK, x, 1 );
> XPK2 = ValueWhen( PK, x, 2 );
>
> y = Cum( 1 );
> XPKB1 = ValueWhen( PKB, y, 1 );
> XPKB2 = ValueWhen( PKB, y, 2 );
>
> peakdiff = ValueWhen( PK, H, 1 )/ValueWhen( PK, H, 2 );
> doubletop = PK AND abs( peakdiff - 1 ) < validdiff AND (XPK1 - XPK2)
> >mindistance AND High > HHV( Ref( H, fwdcheck ), fwdcheck - 1 );
>
> peakdiffb = ValueWhen( PKB, L, 1 )/ValueWhen( PKB, L, 2 );
> doublebot = PKB AND abs( peakdiffb - 1 ) < validdiff AND (XPKB1 -
> XPKB2)>mindistance AND Low < LLV( Ref( L, fwdcheck ), fwdcheck - 1 );
>
> Buy = doubletop;
> Sell = doublebot;
>
> WriteIf( Highest( doubletop ) == 1 OR Lowest(doublebot)
> ==1 , "AmiBroker has detected some possible double"+ WriteIf( Highest
> ( doubletop ) == 1," top "," bottom ") + "patterns for " + Name()
> + "\nLook for green arrows on the price
> chart.", "There are no double top/bottom patterns for " + name() );
>
> Filter=Highest(doubletop)==1 OR Lowest(doublebot)==1 ;
>
> AddColumn( IIf( doubletop , 88, 01), "Double TOP", formatChar );
> AddColumn( IIf( doublebot , 88, 01), "Double BOT", formatChar );
>
>
> ******************
>
> --- In amibroker@xxxxxxxxxxxxxxx, "YEA RIGHT" <suedeuno@xxxx> wrote:
> > You would need to change the lines: PK= Peak( H, percdiff, 1 ) ==
> > HIGH; and peakdiff = ValueWhen( PK, H, 1 )/ValueWhen( PK, H, 2 );
> as
> > well as the HHV line.
> >
> >
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "Hans" <hansib@xxxx> wrote:
> > > Hello,
> > > I need some help....
> > > I get this code at amibroker/library to get double tops. I tried
> to
> > > modify it (Low instead of High and LLV instead of HHV) to
> > get "double
> > > Bottoms".... without success. I hope anyone can help me....
> > > Many thanks
> > > Hans
> > >
> > > /* Detecting double tops */
> > > percdiff = 5; /* peak detection threshold */
> > > fwdcheck = 5; /* forward validity check */
> > > mindistance = 10;
> > > validdiff = percdiff/400;
> > > PK= Peak( H, percdiff, 1 ) == HIGH;
> > >
> > > x = Cum( 1 );
> > > XPK1 = ValueWhen( PK, x, 1 );
> > > XPK2 = ValueWhen( PK, x, 2 );
> > >
> > > peakdiff = ValueWhen( PK, H, 1 )/ValueWhen( PK, H, 2 );
> > > doubletop = PK AND abs( peakdiff - 1 ) < validdiff AND (XPK1 -
> > > XPK2)>mindistance
> > > AND HIGH > HHV( Ref( H, fwdcheck ), fwdcheck - 1 );
> > > buy = doubletop;
> > > sell = 0;
> > >
> > > writeif( highest( doubletop ) == 1, "AmiBroker has detected some
> > > possible
> > > double top patterns for " + name() + "\nLook for green arrows on
> > the
> > > price
> > > chart.", "There are no double top patterns for " + name() );
> > > grazie
>
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