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That
code is incomplete, Ugar.
The
tough part to program is an additional rule which doesn't allow SAR to enter the
price range of the last 2 days.
<SPAN
class=849580700-27052003>
<SPAN
class=849580700-27052003>Bob
<SPAN
class=849580700-27052003>
<SPAN
class=849580700-27052003>
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<SPAN
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<FONT face=Tahoma
size=2>-----Original Message-----From: Ugur Arslan
[mailto:ugur_arslan@xxxxxxxxxxx]Sent: Monday, May 26, 2003 4:35
PMTo: equismetastock@xxxxxxxxxxxxxxxSubject: Re:
[EquisMetaStock Group] Parabolic SAR formula
Jay,
thnak you for your response but iwas more looking
for the code to plug in metastock. I have this formula
FORMULA
SAR[tomorrow]=SAR[today] + AF *
(EP[trade]-SAR[today]
DEFINITIONS
SIP=the extreme price point while in the previous
tradeAF=begins at .02 and is increased (depending on the rules below) by
.02 perday until .20AF is never increased beyond
.20EP[trade]=Extreme Price Point for the trade made so
far
but this formual is uelless unles i know is how to calculate the
SAR(today) to be able to tweak things. i can't remember the formula that's why
i was asking for the code.
Thanks,
ugur
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
<A href=""
title=JayTownsend@xxxxxxx>JayTownsend@xxxxxxx
To: <A
href=""
title=equismetastock@xxxxxxxxxxxxxxx>equismetastock@xxxxxxxxxxxxxxx
Sent: Monday, May 26, 2003 3:46
PM
Subject: Re: [EquisMetaStock Group]
Parabolic SAR formula
<FONT face=Arial lang=0 size=2
FAMILY="SANSSERIF">Hi:Here's a site that has an explanation of the
Parabolic SAR which is much the same as the one in Wilder's book.<A
href="">http://www.incrediblecharts.com/technical/parabolic_sar_construction.htmTheir
explanation is below.I never tried to program it in MetaStock
because I've assumed that MetaStock has it correct, and it sure looked that
way when I was playing with it. It is like so many other formulas that
are always in the market, it works great in trending markets but you pay a
high price in choppy markets.JayThe
"formula"<FONT color=#000000 face=Arial lang=0 size=6
FAMILY="SANSSERIF">
Parabolic SAR
<FONT color=#000000 face=Arial lang=0 size=5
FAMILY="SANSSERIF">Construction<FONT
color=#000000 face=Arial lang=0 size=2
FAMILY="SANSSERIF">There are a few basic concepts that need to be
addressed before we can explain how Parabolic SAR is
calculated:Extreme PointThis is the highest price recorded (to date)
during a long trade or the lowest price recorded (to date) during a short
trade.Significant PointThe SP is the highest price reached in a long
trade or the lowest price reached in a short trade. It is equal to the
extreme point when a trade is closed.Acceleration FactorThe
Acceleration Factor starts at 2% for a new trade and increases by 2% on each
day that a new extreme point is reached. The maximum acceleration factor is
20%. No further increases are made after this figure has been
reached..SAR CalculationOn day 1 of a new trade (the day
that the trade is entered), the Parabolic SAR is taken as the significant
point from the previous trade.If the trade is Long the SP will be the
extreme Low reached in the previous trade.If the trade is Short then the
SP will be the extreme High reached in the previous trade.To
calculate Parabolic SAR for the following day: Take the difference
between the extreme point and the SAR (on day 1) and multiply by the
acceleration factor. If the trade is Long, add the result to the SAR on
day 1. If the trade is Short, subtract the result from the SAR on day
1.There is one exception:Parabolic SAR is never moved within the
range of the current or previous day (highest High to lowest Low over the 2
days).If this occurs in a long trade, use the lowest Low over the 2 days
as SAR for the following day.If short, use the highest High over the 2
days as SAR for the following day.Repeat the Parabolic SAR
calculation for each subsequent day, adjusting the Acceleration Factor
whenever a new extreme point is recorded.The trade is reversed when
price equals the Parabolic SAR for the day.
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