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{ Reverse True Range is the the *smallest*
of the following for each period:
* The distance from today's High
to today's Low;
* The distance from yesterday's Close
to today's High;
* The distance from yesterday's Close
to today's Low.}
> Jose what does the Reverse part of the indicator used for?
KS, plot it and find out. There are some interesting signals
waiting to be found using this variation of ATR - somewhat similar
to a low volatility range & breakout.
> What is the difference with you ATR and MS ATR? Thanks.
>From memory, I believe that MetaStock's ATR uses Wilder's smoothing.
I use the traditional exponential smoothing.
The differences are that, for example, a 20-period MS ATR is really
using a 10-period exponential smoothing for the ATR.
====================
ATR - True & Reverse
====================
---8<--------------------------------
{ True, Reverse & MetaStock ATR v3.0 }
{ (c)Copyright 2004 Jose Silva }
{ http://www.metastocktools.com }
{ Reverse True Range is the the *smallest*
of the following for each period:
* The distance from today's High
to today's Low;
* The distance from yesterday's Close
to today's High;
* The distance from yesterday's Close
to today's Low.}
{ user input }
plot:=Input("[1]True ATR, [2]Reverse ATR, [3]Both, [4]MS-
ATR",1,4,1);
pds:=Input("Average True Range periods",
1,252,10);
pdsN:=Input("normalizing periods (1=none)",
1,2520,1);
smooth:=Input("Sine-weighted smoothing? [1]Yes, [0]No",0,1,0);
{ define True Range }
x1:=ValueWhen(2,1,C);
TrueRange:=Max(H-L,Max(Abs(x1-H),Abs(x1-L)));
RevTrueRange:=Min(H-L,Min(Abs(x1-H),Abs(x1-L)));
{ average True Range }
ATRtrue:=Mov(TrueRange,pds,E);
ATRrev:=Mov(RevTrueRange,pds,E);
ATRmeta:=Mov(TrueRange,pds*2-1,E);
{ normalize ATR }
ATRraw:=If(plot=1,ATRtrue,If(plot=2,ATRrev,
If(plot=4,ATRmeta,ATRtrue)));
ATRnorm:=100*(ATRraw-LLV(ATRraw,pdsN))
/(HHV(ATRraw,pdsN)-LLV(ATRraw,pdsN)+.000001);
ATRplot:=If(pdsN<2,ATRraw,ATRnorm);
rATRnorm:=100*(ATRrev-LLV(ATRrev,pdsN))
/(HHV(ATRrev,pdsN)-LLV(ATRrev,pdsN)+.000001);
rATRplot:=If(pdsN<2,RevTrueRange,rATRnorm);
{ optional sine-weighted smoothing }
ATRplot:=If(smooth=1,(Sin(30)*ATRplot
+Sin(60)*Ref(ATRplot,-1)
+Sin(90)*Ref(ATRplot,-2)
+Sin(60)*Ref(ATRplot,-3)
+Sin(30)*Ref(ATRplot,-4))
/(Sin(30)*2+Sin(60)*2+Sin(90)),ATRplot);
rATRplot:=If(smooth=1,(Sin(30)*rATRplot
+Sin(60)*Ref(rATRplot,-1)
+Sin(90)*Ref(rATRplot,-2)
+Sin(60)*Ref(rATRplot,-3)
+Sin(30)*Ref(rATRplot,-4))
/(Sin(30)*2+Sin(60)*2+Sin(90)),rATRplot);
{ plot ATR }
If(plot=3,rATRplot,ATRplot);
ATRplot
---8<--------------------------------
jose '-)
http://www.metastocktools.com
--- In equismetastock@xxxxxxxxxxxxxxx, "formulaprimer"
<formulaprimer@xxxx> wrote:
> Jose what does the Reverse part of the indicator used for?
> What is the difference with you ATR and MS ATR? Thanks.
> K.S.
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