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Martin,
Nice question for AFL solution.
Plot(C,"",1,64);
SetBarsRequired(1000,0);
percentChange = 1;
X=BarIndex();
isPeak = PeakBars(H, percentChange) == 0;
Peaktime=ValueWhen(isPeak, x);
peakValue = ValueWhen(isPeak, H);
LastPeaktime=LastValue(ValueWhen(isPeak, x));
LastPeakValue = LastValue(ValueWhen(isPeak, H));
ishigherpeak=ispeak AND Peakvalue>LastPeakValue;
PlotShapes(shapeDownTriangle*ishigherPeak,colorYellow);//the higher
peaks
PlotShapes(shapeDownArrow*isPeak,colorRed);//the peaks
HigherPeaktime=LastValue(ValueWhen(ishigherPeak, x));
HigherPeakValue = LastValue(ValueWhen(ishigherPeak, H));
PlotShapes(shapeCircle*(higherPeaktime==x),colorPink);//the last
higher peak
trendline=LineArray(x[HigherPeaktime],H[HigherPeaktime],x
[Lastpeaktime],H[Lastpeaktime],1);
Plot(trendline,"t",colorBrightGreen,8);
The line will be right extended, else change 1 to 0 in the
trendline= ...
Dimitris
--- In amibroker@xxxxxxxxxxxxxxx, "Martin Henricson" <martin@xxxx>
wrote:
>
> Hi,
>
> I am trying to find out the value of a previous peak. For
simplicity I have
> started out with the zig-zag based PeakBars() function. I construct
an array
> with booleans indicating if a bar is a peak or not and another
array
> indicating the corresponding peak value:
>
> percentChange = 1;
> isPeak = PeakBars(H, percentChange) == 0;
> peakValue = ValueWhen(isPeak == 1, H);
>
> So far everything is fine. My problem is now that I would like to
know the
> value of and number of bars since a previous peak. This previous
peak should
> be the first one backwards in time with a higher High than the
current peak.
> I would use this information to plot trend lines.
>
> I have made attempts at solving this with looping, but it seems
like quite
> time consuming to scan backwards and forth through the arrays to
construct
> the needed arrays. So my question is: is there a way to do this
with some
> handy array based functions?
>
> Any hints would be highly appreciated!
>
> /Martin
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