[EquisMetaStock Group] Re: Question re: ZigZag Trend

["SR" <raftsp@xxxxxxxxx>]

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David,

For back tests you should always use SR ZigZag Trend or any fixed amount SR
ZZT.
Never use Zigzag Validity for back tests! And certainly, never use
zigzag-related
MS functions for back tests, unless you confirm them with SR ZZT!

Since you want to use 3% troughbars of close ( TroughBars(1,c,3) ) you have
to use
a 3% (fixed amount) SR ZZT. Let's call it SR ZZT1. If you already have some
fixed
amount SR ZZTs use one of them and make sure that the "amnt" constant reads
3.
It should look like this:

{SR ZZT1}
amnt:=3; {so SR ZZT1 uses 3%}
md:=1;
vr:=CLOSE;
zz0:=If(md=1, Zig(vr,amnt,%), Zig(vr,amnt,$));
zz1:=Ref(zz0,-1);
zz2:=Ref(zz0,-2);

tr:=ValueWhen(1,zz0>zz1 AND zz1<zz2, zz1);
pk:=ValueWhen(1,zz0<zz1 AND zz1>zz2, zz1);
PU:=If(md=1,tr+Abs(tr)*amnt/100,tr+amnt);
PD:=If(md=1,pk-Abs(pk)*amnt/100,pk-amnt);

res:=If(vr>=PU AND zz0>zz1,1,
If(vr<=PD AND zz0<zz1,-1,0));
res:=If(res<>0,res,ValueWhen(1,res<>0,res));
res
{*** End of Code ***}

Now one step further:
I guess that
the troughbars are valid if the SR ZZT1 reads 1 (uptrend confirmed) and
the peakbars are valid if the SR ZZT1 reads -1 (downtrend confirmed).

So, now we are ready to make valid troughbars and peakbars indicators in the
following way:

{SR Troughbars1}
TrB:=If(Fml("SR ZZT1")=1,TroughBars(1,C,3),PREV+1);
TrB

{SR Peakbars1}
PkB:=If(Fml("SR ZZT1")=-1,PeakBars(1,C,3),PREV+1);
PkB

Needless to say that one can make various fixed amount SR ZZTs and SR
Peakbars
and Troughbars indicators (with various reversal amounts) by changing the
corresponding
constants.

Finaly, your expert signal should look like this:

Fml("SR Troughbars1")*2=Fml("SR Peakbars1")
AND Fml("SR Peakbars1")>Fml("SR Troughbars1")

You will certainly notice that the new signals are delayed -compared to the
old ones-
but this is the cost of peaks and troughs confirmation.
You may want to experiment with different reversal amounts. Obviously,
smaller amounts
result in more signals and shorter delays.

I hope this helps

Best regards
Spyros



Message: 4
   Date: Mon, 04 Nov 2002 18:37:15 -0000
   From: "drc13uk" <drc1939@xxxxxxxxxxxx>
Subject: Re: Question re: ZigZag Trend

Spyros - I would like to substitute your Binary ZigZag validity in
place of the ordinary ZigZag in the following exploration :
When(TroughBars(1,C,3)*2,=,PeakBars(1,C,3))
AND When(PeakBars(1,C,3),>,TroughBars(1,C,3))
Can you lead me in the right direction to achieve this? Many thanks,
David.





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