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Works in Guru commentary.....
/* Detecting double tops */
percdiff = 5; /* peak detection threshold */
fwdcheck = 5; /* forward validity check */
mindistance = 10;
validdiff = percdiff/400;
PK= Peak( H, percdiff, 1 ) == High;
//
Tr=Trough(L,percdiff,1)== Low;
//
x = Cum( 1 );
XPK1 = ValueWhen( PK, x, 1 );
XPK2 = ValueWhen( PK, x, 2 );
//
xTR1=ValueWhen( Tr, x, 1 );
xTr2 = ValueWhen( Tr, x, 2 );
//
peakdiff = ValueWhen( PK, H, 1 )/ValueWhen( PK, H, 2 );
//
Troughdiff=ValueWhen( tr, L, 1 )/ValueWhen( tr, L, 2 );
//
doubletop = PK AND abs( peakdiff - 1 ) < validdiff AND (Xpk1 -
Xpk2)>mindistance AND High > HHV( Ref( H, fwdcheck ), fwdcheck - 1 );
//
doubleBot=tr AND abs( troughdiff - 1 ) < validdiff AND (Xtr1 -
Xtr2)>mindistance AND Low < LLV( Ref( L, fwdcheck ), fwdcheck - 1 );
//
Buy = doubletop;
Sell = doublebot;
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() );
WriteIf(Highest( doublebot)==1,"AmiBroker has detected some possible double
bottom patterns for " + Name() + "\nLook for red arrows on the price
chart.", "There are no double bottom patterns for " + Name() );
----- Original Message -----
From: "Hans" <hansib@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Monday, August 30, 2004 5:57 AM
Subject: [amibroker] Change DoubleTops to DoubleBottoms
> 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
>
>
>
>
> Check AmiBroker web page at:
> http://www.amibroker.com/
>
> Check group FAQ at:
http://groups.yahoo.com/group/amibroker/files/groupfaq.html
> Yahoo! Groups Links
>
>
>
>
>
>
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