Can you help identify these bands?

[Jharvey407]

Here is some code that was forwarded to me from another trader. He called them Fibonnaci Bollingers, but to me they don't really resemble either.

I was hoping someone could help me identify them so that I could code them into and EFS study.

TH:=If(Ref(C,-1) > H,Ref(C,-1),H);
TL:=If(Ref(C,-1) < L,Ref(C,-1),L);
TR:=TH-TL;
TRA:= Wilders(TR,Periods);

MidPoint:= Mov(pr,Periods,mat);

UpperBand3:= MidPoint + (factor3 * TRa);
UpperBand2:= MidPoint + (factor2 * TRa);
UpperBand1:= MidPoint + (factor1 * TRa);

LowerBand1:= MidPoint - (factor1 * TRa);
LowerBand2:= MidPoint - (factor2 * TRa);
LowerBand3:= MidPoint - (factor3 * TRa);

Any help would be appreciated.

James

[ACM]

James
In looking at the formula it seems that the bands are calculated by simply adding to or subtracting from a moving average the Average True Range multiplied by a factor.
The attached efs will perform the calculations explained above. All parameters can be edited through Edit Studies.
Alex

[ACM]

James
FWIW if I remember correctly these bands are also known as Stoller Bands or Channel
Alex

[buzzhorton]

Originally posted by Alexis C. Montenegro
James
FWIW if I remember correctly these bands are also known as Stoller Bands or Channel
Alex

Good call Alexis!

I googled "Stoller Bands" and found the explanation but posting the link would violate eSignal forum rules and posting the explanation could be considered copyright infringement.

[Jharvey407]

Buzz,

Would you PM or email the link to me please?

James

Originally posted by buzzhorton
Good call Alexis!

I googled "Stoller Bands" and found the explanation but posting the link would violate eSignal forum rules and posting the explanation could be considered copyright infringement.

[Jharvey407]

Alexis,

What do you make of this line of code?

TRA:= Wilders(TR,Periods);

It looks like some sort of smoothing, or volatility formula. I know I have heard the term Wilders, but I can't remeber anything about it.

James

[ACM]

James
That is Metastock's function for Wilder's average.
Alex

[Jharvey407]

Keltner Channel

So then what I am really looking at is a variation of the Keltner Channel using the ATR (Wilders average true range) multiplied by some factor?

UpperBand3:= MidPoint + (factor3 * TRa)

[ACM]

James
That is correct.
Alex

[Jharvey407]

Very interesting.

Thanks for the help guys.

[Jharvey407]

Wilders Smoothing

I think I am finally getting the bands to work the way I wanted, but I still have one problem.

I can't find information on Wilders Smoothing, or I can't find detailed information on Wilders Smoothing.

I am interested in plotting Wilders Smoothed Moving Averages. Does anyone have the formula for this?

Thanks

[buzzhorton]

Re: Wilders Smoothing

Try a google search:

http://www.google.com/search?hl=en&q=Wilders+Smoothing&btnG=Google+Search

Also, how did you get the bands to work the way you wanted?

Please post a screenshot and parameters.

THANKING YOU IN ADVANCE.

Originally posted by Jharvey407
I think I am finally getting the bands to work the way I wanted, but I still have one problem.

I can't find information on Wilders Smoothing, or I can't find detailed information on Wilders Smoothing.

I am interested in plotting Wilders Smoothed Moving Averages. Does anyone have the formula for this?

Thanks

[Jharvey407]

Buzzhorton,

Thanks I did an extensive google search before I posted.

But I like I said in my previous post, I can't find detailed information on how to calculate the Wilders smoothed moving average.

Does anyone have the formula, or any useful information.

Thanks

[buzzhorton]

Did you see this?

October 2002
TRADERS' TIPS

http://www.traders.com/Documentation/FEEDbk_docs/Archive/102002/TradersTips/TradersTips.html#esignal

/*********************** 
Copyright © eSignal, a division of Interactive Data Corporation. 2002. All rights reserved. 
This sample eSignal Formula Script (EFS) may be modified and saved under a new filename; 
however, eSignal is no longer responsible for the functionality once modified. 
eSignal reserves the right to modify and overwrite this EFS file with each new release. 
******************************/ 

function preMain() {

 setPriceStudy(false);

 setStudyTitle("SRSI");

 setCursorLabelName("SRSI", 0);

 setDefaultBarFgColor(Color.blue, 0);

}

Smooth23 = new Array();

function main(Len) {

 if (Len == null)

  Len = 10;

 

 var count = 0;

 var CU23 = 0;

 var CD23 = 0;

 var SRSI = 0;

 var i = 0;

 if (getBarState() == BARSTATE_NEWBAR){

  for(i = Len - 1; i > 0; i--)

   Smooth23[i] = Smooth23[i - 1];

  Smooth23[0] = ( close() + 2 * close(-1) + 2 * close(-2) + close(-3) ) / 6;

 }

 CU23 = 0;

CD23 = 0;

 for(i = 0; i < Len - 1; i++){

  if(Smooth23[i] > Smooth23[i + 1])

   CU23 = CU23 + Smooth23[i] - Smooth23[i + 1];

  if(Smooth23[i] < Smooth23[i + 1])

   CD23 = CD23 + Smooth23[i + 1] - Smooth23[i];

 }

 if(CU23 + CD23 != 0)

  SRSI = CU23/(CU23 + CD23);

 return SRSI;

} 

[Jharvey407]

Smoothed Moving Average

Yes buzz, I did see that.

I am not sure what your point is though, as I have stated repeatedly, I am looking for the formula for the

Smoothed Moving Average

and what you have directed me too is a smoothed RSI.