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Re: [amibroker] Re: Writing a fib cluster indicator


  • Date: Tue, 22 Dec 2009 08:59:54 +0100
  • From: reinsley <reinsley@xxxxxxxx>
  • Subject: Re: [amibroker] Re: Writing a fib cluster indicator

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Kevin,


Thank you for your help concerning 3D array.

Unfortunately, I can't get rid of the Error 10 whatever the value or 
when I remore "-111".


-- 
Best regards



Le 21/12/2009 22:36, kevinoversby a écrit :
>
>
> just take out the 111, not really necessary as per my reply to Joris.
>
> --- In amibroker@xxxxxxxxxxxxxxx <mailto:amibroker%40yahoogroups.com>,
> reinsley <reinsley@xxx> wrote:
>  >
>  >
>  >
>  > Hi Joris,
>  >
>  > I got an error 10. Subscript out of range. You must not access array
>  > elements ouside 0..(Barcount-1) range.
>  >
>  > The cursor went before 111
>  >
>  > for ( k = 1;k <= NoOfFibonacciLevels;k++ ) //added; assumed
>  > that this are the Fibonacci levels
>  > {
>  > array[100*i+10*j+k-111] =
>  >
>  > ^D
>  >
>  >
>  >
>  >
>  > As I don't understand the use of 111 in k-111, I took the values of your
>  > comment :
>  >
>  > "might have to adjust the constants(100,10,111) to reflect the param
> values"
>  >
>  > but the error is still there.
>  >
>  > Could you please post some hints about 111 use ?
>  >
>  > TIA
>  >
>  > Best regards
>  >
>  >
>  >
>  >
>  >
>  > Le 21/12/2009 15:48, Joris Schuller a écrit :
>  > >
>  > >
>  > > Don't know how experienced you are; with that in mind, I would first
>  > > simplify code verification somewhat:
>  > >
>  > > 1. limit the plot to the current meaningful visible section by using
>  > > MinPlotValue=(1-Adjfactor)*LowestVisibleValue(*L*) and
>  > > MaxPlotValue=(1+Adjfactor)*HighestVisibleValue(*H*);
>  > >
>  > > 2. start with and verify a simple case (1 pair of peaks and
> troughs) and
>  > > expand from that. Compare results with the results using the Fibonacci
>  > > toolbar
>  > >
>  > > 3. use params to be able to methodically build up in complexity
>  > >
>  > > 4. turn on/off the included ZigZagHL to verify that the correct
>  > > peaks/troughs are selected
>  > >
>  > > 5. verify that the (incorrect) Fib levels you selected are what you
> want
>  > >
>  > > 6. convert the constants in the Fib level loop (10,100,111) to params
>  > > (currently incorrect Fib values are displayed).
>  > >
>  > > 7. changes are prefaced by "added"
>  > >
>  > > The proposed changes are shown below.
>  > >
>  > > *Title* = EncodeColor(4)+ _DEFAULT_NAME()+"; "+EncodeColor(1) +
>  > > StrFormat("{{NAME}} - {{INTERVAL}}; {{DATE}}; O=%g, H=%g, L=%g, C=%g
>  > > (%.1f%%)
>  > > {{VALUES}}", O, H, L, C, SelectedValue( ROC( C, 1 ) ) );
>  > > SetBarsRequired(*sbrAll*,*sbrAll*);
>  > > //============== added; Begin First Addition===================
>  > > Plot(*C*,"C",1,64);
>  > > ZigZagHL=ParamToggle("ZigZagHL","Off|On",1);
>  > > NoOfLastPeaksTroughs=Param("NoOfLastPeaksTroughs",9,1,10,1);
>  > > NoOfFibonacciLevels=Param("NoOfFibonacciLevels",9,1,10,1);
>  > > Adjfactor=Param("Adjfactor",0.003,0,0.05,0.001); //added. Forex values;
>  > > for stocks use change as necessary
>  > > MinPlotValue=(1-Adjfactor)*LowestVisibleValue(*L*);
>  > > MaxPlotValue=(1+Adjfactor)*HighestVisibleValue(*H*);
>  > > Plot(MinPlotValue,"MinPlotValue",*colorGreen*,5);
>  > > Plot(MaxPlotValue,"MaxPlotValue",4,5);
>  > > //===============End First Addition===========
>  > > n = 0.3 ;//approx. 4 point swing on ES
>  > > //fibs[1] = .62; fibs[2] = .27; fibs[3] = 0.01; fibs[4] = .38;
> fibs[5] =
>  > > .5;//added ?????????? fibs[3] = 0.01??;fibs[1]=fibs [6] = .62????????
>  > > fibs[2] = .27;???????
>  > > //fibs [6] = .62; fibs[7] = 1; fibs[8] = 1.27; fibs[9] = 1.62; //9
>  > > symmetric levels//added????????(instead
>  > > of:0,0.236,0.382,0.5,0.618,0.786.1,1.272)
>  > > fibs[1] = 0.0; fibs[2] = .238; fibs[3] = .382; fibs[4] = .5;//added
>  > > ?????????? fibs[3] = 0.01??;fibs[1]=fibs [6] = .62???????? fibs[2] =
>  > > .27;???????
>  > > fibs [5] = .618; fibs[6] = 0.786;fibs[7] = 1; fibs[8] = 1.272;
> fibs[9] =
>  > > 1.618;//for(i=1;i<=9;i++) //Original
>  > > *for*(i=1;i<=NoOfLastPeaksTroughs;i++)//Added
>  > > {
>  > > p[i] = LastValue(ValueWhen(PeakBars(*H*,n)==0,*H*,i)); //last 9 peaks
>  > > t[i] = LastValue(ValueWhen(TroughBars(*L*,n)==0,*L*,i));//last 9
> troughs
>  > >
>  > > //for(j=1;j<=9;j++) //Original
>  > > *for*(j=1;j<=NoOfLastPeaksTroughs;j++) //added
>  > > {
>  > > //for(k=1;k<=9;k++)
>  > > *for*(k=1;k<=NoOfFibonacciLevels;k++) //added; assumed that this
> are the
>  > > Fibonacci levels
>  > > {
>  > > array[100*i+10*j+k-111] = t[i] + fibs[k] * (p[j] - t[i]); // calc fib
>  > > levels //added; might have to adjust the constants(100,10,111) to
>  > > reflect the param values
>  > > }}}
>  > > // Plot levels for testing purposes
>  > > *for*(i=1;i<=900;i++) {
>  > > //Plot(IIf(array[i]>0,array[i],-1e10),"a",colorBlue); //Original
>  > > Plot(IIf(array[i]>MinPlotValue *AND*
>  > > array[i]<MaxPlotValue,array[i],-1e10),"a",*colorBlue*);//Added
>  > > }
>  > >
>  > > //==============ZigZagHL; added for verification
>  > > purposes=========================
>  > > *if* (ZigZagHL)
>  > > {
>  > > //added
>  > > Plot( *C*, "Close", 1,64);
>  > > zigpct = Param( "Zag %",0.2,0.01,10,0.01);
>  > > ATRmult = Param("ATRmult",1.8,0.1,3,0.1);
>  > > Arrowadj = Param("Arrowadj; ",12,2,25,1);
>  > > HHLLSel = ParamToggle("Each Pk/Tr|HH/LL","Each Pk/Tr|HH/LL",1);
>  > > pk=PeakBars(*H*,zigpct)==0;
>  > > tr=TroughBars(*L*,zigpct)==0;
>  > > zHi=Zig(*H*,zigpct); zLo=Zig(*L*,zigpct); HLAvg=(zHi+zLo)/2;
>  > > zp=IIf(pk,zHi,IIf(tr,zLo,IIf(HLAvg>Ref(HLAvg,-1),*H*,*L*)));
>  > > zag=Zig(zp,zigpct);
>  > > pR=Ref(zag,-1)<zag *AND* zag>Ref(zag,1);
>  > > pS=Ref(zag,-1)>zag *AND* zag<Ref(zag,1);
>  > > Plot(*C*,"C",1,64);
>  > > Plot(zag,"",11,1|*styleNoLabel*);//Zig H-L
>  > > PlotShapes(*shapeDownArrow**pR,*colorGreen*,0,*H*,-Arrowadj);
>  > > PlotShapes(*shapeUpArrow**pS,*colorRed*,0,*L*,-Arrowadj);
>  > > *if*(HHLLSel)
>  > > {
>  > > HH=((zag>Ref(zag,- 1) *AND* zag > Ref(zag,1)) *AND* (Peak(zag,zigpct,1
>  > > )>Peak(zag,zigpct,2 ))); //HH
>  > > LL=((zag<Ref(zag,- 1) *AND* zag < Ref(zag,1)) *AND*
> (Trough(zag,zigpct,1
>  > > ) <Trough(zag,zigpct,2 ))); //LL
>  > > }
>  > > *if*(!HHLLSel)
>  > > {
>  > > HH=((zag>Ref(zag,- 1) *AND* zag > Ref(zag,1)));
>  > > LL=((zag<Ref(zag,- 1) *AND* zag < Ref(zag,1)));
>  > > }
>  > > dist = ATRmult*ATR (20);//might not want that
>  > > *for*( i = 0; i < *BarCount*; i++ )
>  > > {
>  > > // ONLY THIS should be inside the loop
>  > > *if*( HH [i]) PlotText( "HH"+ "\n"+*H*[ i ], i, *H*[ i ]+dist[i],
>  > > *colorGreen* );
>  > > *if*( LL [i] ) PlotText( ""+*L*[ i ]+"\nLL", i, *L*[ i ]-dist[i],
>  > > *colorRed* );
>  > > }
>  > > }
>  > >
>  > > *From:* amibroker@xxxxxxxxxxxxxxx
> <mailto:amibroker%40yahoogroups.com> [mailto:amibroker@xxxxxxxxxxxxxxx
> <mailto:amibroker%40yahoogroups.com>] *On
>  > > Behalf Of *kevinoversby
>  > > *Sent:* Saturday, December 19, 2009 4:32 PM
>  > > *To:* amibroker@xxxxxxxxxxxxxxx <mailto:amibroker%40yahoogroups.com>
>  > > *Subject:* [amibroker] Re: Writing a fib cluster indicator
>  > >
>  > >
>  > >
>  > >
> http://groups.yahoo.com/group/amibroker/photos/album/1601688415/pic/1019200479/view
> <http://groups.yahoo.com/group/amibroker/photos/album/1601688415/pic/1019200479/view>
>  > >
> <http://groups.yahoo.com/group/amibroker/photos/album/1601688415/pic/1019200479/view
> <http://groups.yahoo.com/group/amibroker/photos/album/1601688415/pic/1019200479/view>>
>  > >
>  > > See link for plot of unfiltered levels. Levels will be filtered by
>  > > proximity and could also be weighted, for example, by size of swing
>  > > producing them.
>  > >
>  > > Constructive comments welcome and appreciated.
>  > >
>  > > --- In amibroker@xxxxxxxxxxxxxxx
> <mailto:amibroker%40yahoogroups.com> <mailto:amibroker%40yahoogroups.com>,
>  > > "kevinoversby" <kevinoversby@> wrote:
>  > > >
>  > > >
>  > > >
>  > > > OK, its running stably now, execution time well under 0.5 s. Next
>  > > steps are to sort the levels and detect clusters for plotting.
>  > > >
>  > > > If I try to set any of the fibs values to negative values they are
>  > > returned as {EMPTY} - why is that?
>  > > >
>  > > > Thanks / Kevin
>  > > >
>  > > > SetBarsRequired(sbrAll,sbrAll);
>  > > >
>  > > > n = 0.3 ;//approx. 4 point swing on ES
>  > > > fibs[1] = .62; fibs[2] = .27; fibs[3] = 0.01; fibs[4] = .38; fibs[5]
>  > > = .5;
>  > > > fibs [6] = .62; fibs[7] = 1; fibs[8] = 1.27; fibs[9] = 1.62; //9
>  > > symmetric levels
>  > > >
>  > > > for(i=1;i<=9;i++)
>  > > > {
>  > > >
>  > > > p[i] = LastValue(ValueWhen(PeakBars(H,n)==0,H,i)); //last 9 peaks
>  > > > t[i] = LastValue(ValueWhen(TroughBars(L,n)==0,L,i));//last 9 troughs
>  > > >
>  > > > for(j=1;j<=9;j++)
>  > > > {
>  > > > for(k=1;k<=9;k++)
>  > > > {
>  > > >
>  > > > array[100*i+10*j+k-111] = t[i] + fibs[k] * (p[j] - t[i]); // calc fib
>  > > levels
>  > > > }}}
>  > > >
>  > > > // Plot levels for testing purposes
>  > > >
>  > > > for(i=1;i<=900;i++) {
>  > > > Plot(IIf(array[i]>0,array[i],-1e10),"a",colorBlue);
>  > > > }
>  > > >
>  > > >
>  > > >
>  > > > --- In amibroker@xxxxxxxxxxxxxxx <mailto:amibroker%40yahoogroups.com>
>  > > <mailto:amibroker%40yahoogroups.com>, "kevinoversby"
> <kevinoversby@> wrote:
>  > > > >
>  > > > >
>  > > > >
>  > > > >
>  > > > >
>  > > > >
>  > > > > I've now got the levels plotting on ES 15 second data and its
>  > > actually quite fast as the array function calls are in a small
> loop. The
>  > > strange part is that the array reverts to empty shortly after plotting.
>  > > Can anyone see why?
>  > > > >
>  > > > > Thanks / Kevin
>  > > > >
>  > > > >
>  > > > > n = 0.3 ; //approx. 4 point swing on ES
>  > > > > fibs[1] = -.62; fibs[2] = -.27; fibs[3] = 0; fibs[4] = .38; fibs[5]
>  > > = .5;
>  > > > > fibs [6] = .62; fibs[7] = 1; fibs[8] = 1.27; fibs[9] = 1.62; //9
>  > > symmetric levels
>  > > > >
>  > > > > PeakCondition=PeakBars(H,n)==0;
>  > > > > TroughCondition=TroughBars(L,n)==0;
>  > > > >
>  > > > > for(i=1;i<=10;i++)
>  > > > > {
>  > > > >
>  > > > > p[i]=LastValue(ValueWhen(PeakCondition,H,i));
>  > > > > t[i] = LastValue(ValueWhen(TroughCondition,L,i));
>  > > > >
>  > > > > for(j=1;j<=10;j++)
>  > > > > {
>  > > > > for(k=1;k<=5;k++)
>  > > > > {
>  > > > >
>  > > > > array[i+j+k-2] = t[i] + fibs[k] * (p[j] - t[i]); // calc fib levels
>  > > > > }}}
>  > > > >
>  > > > > // Plot first 100 unfiltered levels for test purposes
>  > > > >
>  > > > > for(i=1;i<=100;i++) {
>  > > > > Plot(IIf(array[i]>0,array[i],-1e10),"a",colorBlue);
>  > > > > }
>  > > > >
>  > > > > --- In amibroker@xxxxxxxxxxxxxxx
> <mailto:amibroker%40yahoogroups.com>
>  > > <mailto:amibroker%40yahoogroups.com>, "kevinoversby"
> <kevinoversby@> wrote:
>  > > > > >
>  > > > > > Hi Mike,
>  > > > > >
>  > > > > > Thank you very much for taking the time to post these tips. I
>  > > will incorporate as much as I can and post the update later.
>  > > > > >
>  > > > > >
>  > > > > > Kevin
>  > > > > >
>  > > > > > --- In amibroker@xxxxxxxxxxxxxxx
> <mailto:amibroker%40yahoogroups.com>
>  > > <mailto:amibroker%40yahoogroups.com>, "Mike" <sfclimbers@> wrote:
>  > > > > > >
>  > > > > > > Hi,
>  > > > > > >
>  > > > > > > A couple of quick points to spare you some wasted time.
>  > > > > > >
>  > > > > > > 1. In general; I think that you would benifet greatly by
>  > > reading the following:
>  > > > > > >
>  > > > > > > http://www.amibroker.com/guide/h_understandafl.html
> <http://www.amibroker.com/guide/h_understandafl.html>
>  > > <http://www.amibroker.com/guide/h_understandafl.html
> <http://www.amibroker.com/guide/h_understandafl.html>>
>  > > > > > >
>  > > > > > > 2. You *really* do not want to be making array based function
>  > > calls (e.g. PeakBars, ValueWhen, IIF, TroughBars, etc) within a loop.
>  > > This will be horribly slow. Look for a way to calculate everything
>  > > outside of a loop.
>  > > > > > >
>  > > > > > > 3. The termination check of all your for loops are incorrect.
>  > > Do not use "i = 10". You probably want something like "i <= 10". It
>  > > needs to be a boolean if you ever want it to terminate. Also "=" is
>  > > assignment, "==" is equivalence test.
>  > > > > > >
>  > > > > > > http://www.amibroker.com/guide/a_mistakes.html
> <http://www.amibroker.com/guide/a_mistakes.html>
>  > > <http://www.amibroker.com/guide/a_mistakes.html
> <http://www.amibroker.com/guide/a_mistakes.html>>
>  > > > > > >
>  > > > > > > 4. When trying to populate an array inside a loop, you
>  > > generally should be populating bar by bar: e.g. array[i] = ...
>  > > > > > >
>  > > > > > > Mike
>  > > > > > >
>  > > > > > > --- In amibroker@xxxxxxxxxxxxxxx
> <mailto:amibroker%40yahoogroups.com>
>  > > <mailto:amibroker%40yahoogroups.com>, "kevinoversby"
> <kevinoversby@> wrote:
>  > > > > > > >
>  > > > > > > >
>  > > > > > > >
>  > > > > > > >
>  > > > > > > >
>  > > > > > > >
>  > > > > > > > Parts 1) & 2)
>  > > > > > > >
>  > > > > > > > n = 0.3 //approx. 4 point swing on ES
>  > > > > > > > fibs = [-.62 -.27 0 .38 .5 .62 1 1.27 1.62]; //symmetric
>  > > > > > > >
>  > > > > > > > for(i=1;i=10;i++)
>  > > > > > > > {
>  > > > > > > > PeakCondition=PeakBars(H,n)==0;
>  > > > > > > > p[i] = ValueWhen(PeakCondition,H,i);
>  > > > > > > > p[i] = IIf(p[i] >= HHV(p,i),p[i],0); //set to zero if not HH
>  > > > > > > >
>  > > > > > > > TroughCondition=TroughBars(L,n)==0;
>  > > > > > > > t[i] = ValueWhen(TroughCondition,L,i);
>  > > > > > > > t[i] = IIf(t[i] <= LLV(t,i),t[i],0); //set to zero if not LL
>  > > > > > > >
>  > > > > > > > for(j=1;j=10;j++)
>  > > > > > > > {
>  > > > > > > > for(k=1;k=9;k++)
>  > > > > > > > {
>  > > > > > > >
>  > > > > > > > array = t[i] + fibs[k] * (p[j] - t[i]); // calc fib levels
>  > > > > > > > }}}
>  > > > > > > >
>  > > > > > > > I'm unsure of the last line - how to assign the fib levels to
>  > > an array for sorting. Thanks in advance for any help.
>  > > > > > > >
>  > > > > > > >
>  > > > > > > > Kevin
>  > > > > > > >
>  > > > > > > >
>  > > > > > > >
>  > > > > > > >
>  > > > > > > > --- In amibroker@xxxxxxxxxxxxxxx
> <mailto:amibroker%40yahoogroups.com>
>  > > <mailto:amibroker%40yahoogroups.com>, "kevinoversby"
> <kevinoversby@> wrote:
>  > > > > > > > >
>  > > > > > > > > I have not found an AFL implementation of this so decided
>  > > to develop my own. I'm doing it here as there are a couple of coding
>  > > issues I'm unsure of. Constructive comments and tips most welcome.
>  > > > > > > > >
>  > > > > > > > > Process:
>  > > > > > > > >
>  > > > > > > > > 1) Find i last higher peaks and j last lower troughs
>  > > > > > > > > 2) For each peak/trough pair, calculate fib levels and add
>  > > to array
>  > > > > > > > > 3) Sort array
>  > > > > > > > > 4) Discard a level if distance to next level > tolerance
>  > > > > > > > > 5) Plot remaining levels, preferably at left or right edge
>  > > like volume at price (VAP) to simplify chart.
>  > > > > > > > >
>  > > > > > > > > (A thought just occurred that this would also be a useful
>  > > exercise with VAP levels - investigate later).
>  > > > > > > > >
>  > > > > > > > >
>  > > > > > > > > Kevin
>  > > > > > > > >
>  > > > > > > >
>  > > > > > >
>  > > > > >
>  > > > >
>  > > >
>  > >
>  > >
>  >
>  >
>  > --
>  > Best regards
>  >
>
> 




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