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Rick, thank you so much for the code. I'm always impressed by people's ability to code in AB... I'm pretty good with coding but some aspects of it just go above my head :-) honestly... I understood most of it but the HowLong function I just can't get it into my hard head.
What I'm looking to do is to draw a trendline from the point where the price was higher than the last 50 bars all the way to the right of the chart and a maximum of say 10 ocurrences...
I saw the example below and is sort of what I'm looking for except that instead the GetYSupport should get the point where the price breaks the high of 50 bars ago... I can't seem to figure it out.
If not too difficult and not too time consuming please share a solution. Thanks for your help.
_SECTION_BEGIN("Advanced Trend Lines");
function GetXSupport(Lo, Percentage, Back)
{
return ((BarCount - 1) - LastValue(TroughBars(Lo, Percentage,Back)));
}
function GetYSupport(Lo, Percentage, Back)
{
return (LastValue(Trough(Lo, Percentage, back)));
}
function GetXResistance(Hi, Percentage, Back)
{
return ((BarCount - 1) -LastValue(PeakBars(Hi, Percentage, Back)));
}
function GetYResistance(Hi, Percentage, Back)
{
return (LastValue(Peak(Hi, Percentage, Back)));
}
function TD_Supply(P)
{
return ( P > Ref(P, 1) AND P > Ref(P, -1) AND P > Ref(C, -2));
}
function TD_Demand(P)
{
return ( P < Ref(P, 1) AND P < Ref(P, -1) AND P < Ref(C, -2));
}
////////////////////////////////////////////////////////////////////////
//Parameters
Percentage = Param("Percentage", 1.5, 0.01, 100. ,0.01);
DrawAllLines = ParamToggle("Draw All Lines?", "No|Yes");
Lines = Param("Lines?", 1, 1, BarCount-2);
DrawR = ParamList("Resistance Points", "Off|High to High|High to Low", 1);
DrawS = ParamList("Support Points", "Off|Low to Low|Low to High", 1);
ShowTDP = ParamToggle("Show TD Pionts", "No|Yes", 1);
AllOrDownR = ParamToggle("Resistance Direction", "All|Down");
AllOrUpS = ParamToggle("Support Direction", "All|Up");
ShowSR = ParamToggle("Show Vert S/R","No|Yes", 1);
SRPer = Param("S/R Percentage", 3, 1);
SRBack = Param("S/R Back", 5, 1);
str = "";
Res = Sup = 0;
Con = 1;
////////////////////////////////////////////////////////////////////////
Main = C;
Con = ConS = ConR = 1;
if(DrawS=="Low to Low")
{
Support1 = L;
Support2 = L;
}
else
{
Support1 = L;
Support2 = H;
}
if(DrawR=="High to High")
{
Resistance1 = H;
Resistance2 = H;
}
else
{
Resistance1 = H;
Resistance2 = L;
}
////////////////////////////////////////////////////////////////////////
//Plotting Area
Plot(Main, "", IIf(C>O,colorGreen, colorRed), styleBar);
if(DrawAllLines)
for(i = 2; i<=Lines+1; i++)
{
if(DrawS!="Off")
{
x0 = GetXSupport(Support1, Percentage, i);
x1 = GetXSupport(Support2, Percentage, i-1);
y0 = GetYSupport(Support1, Percentage, i);
y1 = GetYSupport(Support2, Percentage, i-1);
x = LineArray(x0, y0, x1, y1, 1);
if(AllOrUpS) ConS = StrToNum(NumToStr(y0 < y1));
if(Con AND ConS)
Plot(x, "", IIf(LastValue(C) < LastValue(x), colorBlue,colorLightBlue), styleLine|styleThick);
}
if(DrawR!="Off")
{
x0 = GetXResistance(Resistance1, Percentage, i);
x1 = GetXResistance(Resistance2, Percentage, i-1);
y0 = GetYResistance(Resistance1, Percentage, i);
y1 = GetYResistance(Resistance2, Percentage, i-1);
x = LineArray(x0, y0, x1, y1, 1);
if(AllOrDownR) ConR = y0 > y1;
if(Con AND ConR)
Plot(x, "", IIf(LastValue(C) < LastValue(x), colorBlue,colorLightBlue), styleLine|styleThick);
}
}
else
{
if(DrawS!="Off")
{
x0 = GetXSupport(Support1, Percentage, Lines+1);
x1 = GetXSupport(Support2, Percentage, Lines);
y0 = GetYSupport(Support1, Percentage, Lines+1);
y1 = GetYSupport(Support2, Percentage, Lines);
x = LineArray(x0, y0, x1, y1, 1 );
Sup = LastValue(LinRegSlope(x, Lines+1));
if(AllOrUpS) ConS = y0 < y1;
if(Con AND ConS)
Plot(x, "", IIf(LastValue(C) < LastValue(x), colorBlue,colorLightBlue), styleLine|styleThick);
}
if(DrawR!="Off")
{
x0 = GetXResistance(Resistance1, Percentage, Lines+1);
x1 = GetXResistance(Resistance2, Percentage, Lines);
y0 = GetYResistance(Resistance1, Percentage, Lines+1);
y1 = GetYResistance(Resistance2, Percentage, Lines);
x = LineArray(x0, y0, x1, y1, 1 );
Res = LastValue(LinRegSlope(x, Lines+1));
if(AllOrDownR) ConR = y0 > y1;
if(Con AND ConR)
Plot(x, "", IIf(LastValue(C) < LastValue(x), colorBlue,colorLightBlue), styleLine|styleThick);
}
str = "\nR Slope=("+Res+"), S Slope=("+Sup+")";
}
if(ShowTDP)
{
PlotShapes(TD_Supply(H)*shapeSmallCircle, colorRed, 0, H, H*.001);
PlotShapes(TD_Demand(L)*shapeSmallCircle, colorGreen, 0, L, -L*.001);
}
if(ShowSR)
{
for(i=1; i<=SRBack; i++)
{
x0 = GetXSupport(L, SRPer, i);
x1 = BarCount-1;
y0 = GetYSupport(L, SRPer, i);
x = LineArray(x0, y0, x1, y0, 0);
Plot(x, "", IIf(LastValue(C) > x, colorDarkGreen, colorDarkRed), styleLine|styleDashed|styleThick);
x0 = GetXResistance(H, SRPer, i);
y0 = GetYResistance(H, SRPer, i);
x = LineArray(x0, y0, x1, y0, 0);
Plot(x, "", IIf(LastValue(C) > x, colorDarkGreen, colorDarkRed), styleLine|styleDashed|styleThick);
}
}
Title =FullName()+" ({{NAME}})\n{{DATE}}\n"+"Open: "+O+", Hi: "+H+", Lo: "+L+", Close: "+C+StrFormat(" (%.2f %.2f\%)", C-Ref(C, -1), SelectedValue(ROC(C, 1)))+str;
_SECTION_END();
--- In amibroker@xxxxxxxxxxxxxxx, "ricko8294_98" <ricko@xxx> wrote:
>
>
> try this...
>
>
> function Howlong( indicator, Length )
> // a length of 0 will place a dot at the last bar
> {
>
> Start = LastValue( Cum( 1 ) - Length ) == Cum( 1 );
> Start2 = Cum( Start ) == 1;
> x = ValueWhen( Start2 , indicator, 1 ) ;
> return x;
> }
>
> LBPeriod = Param("Lookback Period",50,5,200,1);
> HHValue = LastValue( Ref( HHV( H, LBPeriod ), -1 ) );
> HHPoint = BarsSince( H == HHValue );
>
> Plot( C, "", colorRed, 64 );
> trigger = LastValue( Cross( C , HHValue ) );
>
> if ( trigger )
> {
> Plot( Howlong( HHValue , HHPoint ), "", colorYellow, 1 );
> }
>
> Best regards
> Rick
> --- In amibroker@xxxxxxxxxxxxxxx, "tradinghumble" <sharp2be@> wrote:
> >
> > I would like have a trendline every time the Close is higher than the last 50 closes... the trendline should be drawn from the point all the way to the right of the chart.
> >
> > Can anyone please point me in the right direction?
> >
>
------------------------------------
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