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Re: [amibroker] Re: Modified RSI



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U = sum of up closes/14
D = sum of down closes/14

Bill
----- Original Message ----- 
From: AR.Holzwarth@xxxx 
To: amibroker@xxxxxxxxxxxxxxx 
Sent: Wednesday, October 10, 2001 4:00 PM
Subject: Re: [amibroker] Re: Modified RSI


Thank you for the quick response. I have just read the explanation on thesite you provided. But I am still confused. At the end of the article it says:




What does that mean exactly? What is the "average of upward price change"? Can you provide a simple example?
That would be great.

Thanks
Al



----- Original Message ----- 
From: wavemechanic 
To: amibroker@xxxxxxxxxxxxxxx 
Sent: Wednesday, October 10, 2001 9:46 PM
Subject: Re: [amibroker] Re: Modified RSI


http://www.equis.com/free/taaz/rsi.html
----- Original Message ----- 
From: AR.Holzwarth@xxxx 
To: amibroker@xxxxxxxxxxxxxxx 
Sent: Wednesday, October 10, 2001 3:12 PM
Subject: Re: [amibroker] Re: Modified RSI


I would like to understand the definition of RSI in order to follow the
thread. Could you please explain what (up/down)(last x) means exactlyand
what the "normal " definition of RSI is?
Thank you.

Al


----- Original Message -----
From: "server not recognized" <winchp@xxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Wednesday, October 10, 2001 8:49 AM
Subject: Re: [amibroker] Re: Modified RSI


> Dimitri,
>
> What you describe is not what I meant.. The rsi formula
>
> rsi = 100-(100/(1+(up/down)).
>
> is the fundamental problem.
>
> As up tends to zero, up/down tends to zero and rsi tends to 0
> as down tends to zero, up/down tends to infinity and rsi tends to 1.
>
> The characteristic of these reciprocal type curves is long, unresponsive
tails that lead to the rsi being unresponsive as the
> numerator or denominator tends to zero. All the sensitivity is at the 50%
mark but you are trying to make decisions in the rapidly
> declining sensitivty region.
>
> I suggest the nicety of limit bands be discarded entirely and the rsi be
structered as something else entirely, so that:
>
> it has no limits,
> crosses zero
> and can be equally positive and negative.
>
> For example, and I make this up in my head without checking first,
>
> modrsi = up(last 4)/down (last15) - down(last4)/up(last15)
>
> or closer to the original which I think will tone it down some. (ifnot
reverse the order - put the last14/last3)
>
> modrsi = 100-(100/(1+(up/down)(last3)/(up/down)(last14))).
>
> I am suggesting to be radical and not simply rearrage or blend outcomes
from various established indicators, but break them open
> completely an re-cast their principles.
>
> P
>
>
> ----- Original Message -----
> From: "DIMITRIS TSOKAKIS" <TSOKAKIS@xxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Wednesday, October 10, 2001 3:55 PM
> Subject: [amibroker] Re: Modified RSI
>
>
> > I have always the alternative of Normalization, exposed here in some
> > earlier post, ie
> > NormRSI=100*(RSI-RSImin)//RSImax-RSImin)
> > which fit better in [0,100] band.
> > I think that this new idea of Modified RSI is a better approach.
> > I will revert after more tests.
> > Thank you for hint.
> > Dimitris Tsokakis
> > --- In amibroker@xxxx, "server not recognized" <winchp@xxxx> wrote:
> > > Dimitri,
> > >
> > > Constance Brown in her book "Technical Analysis for the Trading
> > Professional", advocates that the 30/70 is not appropriate as
> > > constants, and should be modified depending upon recent history.
> > For example after an RSI > 70 period then a decline to 40 is
> > > significant and vice versa, i.e 30/70 shpould be applied with
> > judgement.
> > >
> > > Secondly the non zeroing of RSI and its lack of sensitivity beyond
> > the 70/30 is a fault with its ideal of normalising. Constances
> > > suggested opened the door to eve better understanding for me. I
> > would suggest that rather than using the RSI() supplied that you
> > > play around with actual formula and try and achieve the following:
> > >
> > > no upper/lower limit,
> > > able to cross zero
> > > can have negative numbers
> > >
> > > I have done this with ADX with some satisfaction. I would also
> > suggest that additonal terms can be included inside the RSI formula
> > > to increase sensivity to certain events when they are present. I
> > would also suggest that where ever possible ema and ma not be used
> > > except when trying to establish long term baselines. You may not
> > like the jerkiness without them, but the peak values take on
> > > significance in magnitude and timing after you use the
> > reconstructed formulas that ema and ma do their best to blurr.
> > >
> > > Both RSI() and ADX() in my view are horses of different colours
> > because both are associated with volatility breakout. The resultsof
> > > one are similar to the other.
> > >
> > > I hope this helps with your search.
> > >
> > > P
> >
> >
> >
> >
> >
> > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> >
> >
> >
>
>
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>



       

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<DIV><STRONG><FONT size=2>If, for example, you are using RSI(14), then U and D 
are:</FONT></STRONG></DIV>
<DIV><STRONG><FONT size=2></FONT></STRONG>&nbsp;</DIV>
<DIV><STRONG><FONT size=2>U = sum of up closes/14</FONT></STRONG></DIV>
<DIV><STRONG><FONT size=2>D = sum of down closes/14</FONT></STRONG></DIV>
<DIV><STRONG><FONT size=2></FONT></STRONG>&nbsp;</DIV>
<DIV><STRONG><FONT size=2>Bill</FONT></STRONG></DIV>
<BLOCKQUOTE 
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV 
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> 
<A title=AR.Holzwarth@xxxx 
href="mailto:AR.Holzwarth@xxxx";>AR.Holzwarth@xxxx</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=amibroker@xxxxxxxxxx 
href="mailto:amibroker@xxxxxxxxxxxxxxx";>amibroker@xxxxxxxxxxxxxxx</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, October 10, 2001 4:00 
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [amibroker] Re: Modified 
RSI</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Thank you for the quick response. I havejust 
read the explanation on the site you provided. But I am still confused. At the 
end of the article it says:</FONT></DIV>
<DIV><FONT face=Arial></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2><IMG style="WIDTH: 333px; HEIGHT: 48px" height=45 
src="http://www.equis.com/free/taaz/images/rsicalc2.gif"; 
width=303></FONT></DIV>
<DIV><FONT face=Arial></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial>What does that mean exactly? What is the "averageof 
upward price change"? Can you provide a simple example?</FONT></DIV>
<DIV><FONT face=Arial>That would be great.</FONT></DIV>
<DIV><FONT face=Arial></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial>Thanks</FONT></DIV>
<DIV><FONT face=Arial>Al</FONT></DIV>
<DIV><FONT face=Arial></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial></FONT>&nbsp;</DIV>
<BLOCKQUOTE 
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV 
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> 
wavemechanic 
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=amibroker@xxxxxxxxxxxx 
href="mailto:amibroker@xxxxxxxxxxxxxxx";>amibroker@xxxxxxxxxxxxxxx</A></DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, October 10, 2001 9:46 
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [amibroker] Re: Modified 
RSI</DIV>
<DIV><BR></DIV>
<DIV><STRONG><FONT size=2><A 
href="http://www.equis.com/free/taaz/rsi.html";>http://www.equis.com/free/taaz/rsi.html</A></FONT></STRONG></DIV>
<BLOCKQUOTE 
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV 
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> 
<A title=AR.Holzwarth@xxxx 
href="mailto:AR.Holzwarth@xxxx";>AR.Holzwarth@xxxx</A></DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A 
title=amibroker@xxxxxxxxxxxxxxx 
href="mailto:amibroker@xxxxxxxxxxxxxxx";>amibroker@xxxxxxxxxxxxxxx</A> 
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, October 10, 2001 
3:12 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [amibroker] Re: Modified 
RSI</DIV>
<DIV><BR></DIV>I would like to understand the definition of RSI in order 
to follow the<BR>thread. Could you please explain what (up/down)(lastx) 
means exactly and<BR>what the "normal " definition of RSI is?<BR>Thank 
you.<BR><BR>Al<BR><BR><BR>----- Original Message -----<BR>From: "server 
not recognized" &lt;<A 
href="mailto:winchp@xxxx";>winchp@xxxx</A>&gt;<BR>To: 
&lt;<A 
href="mailto:amibroker@xxxxxxxxxxxxxxx";>amibroker@xxxxxxxxxxxxxxx</A>&gt;<BR>Sent: 
Wednesday, October 10, 2001 8:49 AM<BR>Subject: Re: [amibroker] Re: 
Modified RSI<BR><BR><BR>&gt; Dimitri,<BR>&gt;<BR>&gt; What you describe is 
not what I meant.. The rsi formula<BR>&gt;<BR>&gt; rsi = 
100-(100/(1+(up/down)).<BR>&gt;<BR>&gt; is the fundamental 
problem.<BR>&gt;<BR>&gt; As up tends to zero, up/down tends to zero and 
rsi tends to 0<BR>&gt; as down tends to zero, up/down tends to infinity 
and rsi tends to 1.<BR>&gt;<BR>&gt; The characteristic of these reciprocal 
type curves is long, unresponsive<BR>tails that lead to the rsi being 
unresponsive as the<BR>&gt; numerator or denominator tends to zero.&nbsp; 
All the sensitivity is at the 50%<BR>mark but you are trying to make 
decisions in the rapidly<BR>&gt; declining sensitivty 
region.<BR>&gt;<BR>&gt; I suggest the nicety of limit bands be discarded 
entirely and the rsi be<BR>structered as something else entirely, so 
that:<BR>&gt;<BR>&gt;&nbsp; it has no limits,<BR>&gt; crosses zero<BR>&gt; 
and can be equally positive and negative.<BR>&gt;<BR>&gt; For example, and 
I make this up in my head without checking first,<BR>&gt;<BR>&gt; modrsi 
=&nbsp;&nbsp;&nbsp;&nbsp; up(last 4)/down (last15) - 
down(last4)/up(last15)<BR>&gt;<BR>&gt; or closer to the original which I 
think will tone it down some. (if not<BR>reverse the order - put the 
last14/last3)<BR>&gt;<BR>&gt; modrsi = 
100-(100/(1+(up/down)(last3)/(up/down)(last14))).<BR>&gt;<BR>&gt; I am 
suggesting to be radical and not simply rearrage or blend outcomes<BR>from 
various established indicators, but break them open<BR>&gt; completely an 
re-cast their principles.<BR>&gt;<BR>&gt; P<BR>&gt;<BR>&gt;<BR>&gt; ----- 
Original Message -----<BR>&gt; From: "DIMITRIS TSOKAKIS" &lt;<A 
href="mailto:TSOKAKIS@xxxx";>TSOKAKIS@xxxx</A>&gt;<BR>&gt;To: 
&lt;<A 
href="mailto:amibroker@xxxxxxxxxxxxxxx";>amibroker@xxxxxxxxxxxxxxx</A>&gt;<BR>&gt; 
Sent: Wednesday, October 10, 2001 3:55 PM<BR>&gt; Subject: [amibroker] Re: 
Modified RSI<BR>&gt;<BR>&gt;<BR>&gt; &gt; I have always the alternative of 
Normalization, exposed here in some<BR>&gt; &gt; earlier post, ie<BR>&gt; 
&gt; NormRSI=100*(RSI-RSImin)//RSImax-RSImin)<BR>&gt; &gt; which fit 
better in [0,100] band.<BR>&gt; &gt; I think that this new idea of 
Modified RSI is a better approach.<BR>&gt; &gt; I will revert after more 
tests.<BR>&gt; &gt; Thank you for hint.<BR>&gt; &gt; Dimitris 
Tsokakis<BR>&gt; &gt; --- In <A 
href="mailto:amibroker@xxxx";>amibroker@xxxx</A>..., "server not recognized" 
&lt;winchp@xxxx...&gt; wrote:<BR>&gt; &gt; &gt; 
Dimitri,<BR>&gt; &gt; &gt;<BR>&gt; &gt; &gt; Constance Brown in her book 
"Technical Analysis for the Trading<BR>&gt; &gt; Professional", advocates 
that the 30/70 is not appropriate as<BR>&gt; &gt; &gt; constants, and 
should be modified depending upon recent history.<BR>&gt; &gt; For example 
after an RSI &gt; 70 period then a decline to 40 is<BR>&gt; &gt; &gt; 
significant and vice versa, i.e 30/70 shpould be applied with<BR>&gt;&gt; 
judgement.<BR>&gt; &gt; &gt;<BR>&gt; &gt; &gt; Secondly the non zeroing of 
RSI and its lack of sensitivity beyond<BR>&gt; &gt; the 70/30 is a fault 
with its ideal of normalising.&nbsp; Constances<BR>&gt; &gt; &gt; 
suggested opened the door to eve better understanding for me.&nbsp; 
I<BR>&gt; &gt; would suggest that rather than using the RSI() supplied 
that you<BR>&gt; &gt; &gt; play around with actual formula and try and 
achieve the following:<BR>&gt; &gt; &gt;<BR>&gt; &gt; &gt; no upper/lower 
limit,<BR>&gt; &gt; &gt; able to cross zero<BR>&gt; &gt; &gt; can have 
negative numbers<BR>&gt; &gt; &gt;<BR>&gt; &gt; &gt; I have done thiswith 
ADX with some satisfaction.&nbsp; I would also<BR>&gt; &gt; suggest that 
additonal terms can be included inside the RSI formula<BR>&gt; &gt; &gt; 
to increase sensivity to certain events when they are present.&nbsp; 
I<BR>&gt; &gt; would also suggest that where ever possible ema and manot 
be used<BR>&gt; &gt; &gt; except when trying to establish long term 
baselines.&nbsp; You may not<BR>&gt; &gt; like the jerkiness without them, 
but the peak values take on<BR>&gt; &gt; &gt; significance in magnitude 
and timing after you use the<BR>&gt; &gt; reconstructed formulas thatema 
and ma do their best to blurr.<BR>&gt; &gt; &gt;<BR>&gt; &gt; &gt; Both 
RSI() and ADX() in my view are horses of different colours<BR>&gt; &gt; 
because both are associated with volatility breakout. The results 
of<BR>&gt; &gt; &gt; one are similar to the other.<BR>&gt; &gt; 
&gt;<BR>&gt; &gt; &gt; I hope this helps with your search.<BR>&gt; &gt; 
&gt;<BR>&gt; &gt; &gt; P<BR>&gt; &gt;<BR>&gt; &gt;<BR>&gt; &gt;<BR>&gt; 
&gt;<BR>&gt; &gt;<BR>&gt; &gt; Your use of Yahoo! Groups is subject 
to<BR><A 
href="http://docs.yahoo.com/info/terms/";>http://docs.yahoo.com/info/terms/</A><BR>&gt; 
&gt;<BR>&gt; &gt;<BR>&gt; 
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