RE: [amibroker] IBD Relative Strength

Wed, 06 Sep 2006 21:23:10 -0700

Dear Don,

I included an exponential moving average of the ROC to identify trend changes.  I agree with Randy’s post that being able to rank all stocks against each other in a 1-99 ranking system would be great.  My sense is that it can be done but I’m not familiar enough with AFL to do it.

 

Regards,

 

Fred

 

//IBD Weighted ROC

//Ideally would like to compare an ROC of a stock vs all other stocks and rank them 1-99.

 

Per           = Param("Per",63,5,250,1);

IBDroc = ((C-Ref(C,-63)/Ref(C,-63))*0.4 + (C-Ref(C,-126)/Ref(C,-126))*0.2 + (C-Ref(C,-189)/Ref(C,-189))*0.2 + (C-Ref(C,-252)/Ref(C,-252))*0.2)*100;

IBDrocMA      = EMA(IBDroc,Per);

Plot(IBDroc,"IBD Weighted ROC",colorBlue,styleLine);

Plot(IBDrocMA,"EMA of IBDroc",colorBlue,styleDashed);

 

From: [email protected] [mailto:[email protected]] On Behalf Of Randy Harmelink
Sent: Wednesday, September 06, 2006 6:03 PM
To: [email protected]
Subject: Re: [amibroker] IBD Relative Strength

 

On 9/6/06, Don Lindberg <[EMAIL PROTECTED]net> wrote:
> I am trying to create an indicator that will mimic the Relative
> Strength Line from the IBD newspaper charts. Using the default RS in
> AmiBroker does not give same graph.  I also use Worden's Tel-Chart,
> and I am able to get the indicator in TC to work correctly with the
> folowing formula:
> ((((C - C63) / C63) * .4) + (((C - C126) / C126) * .2) + (((C -
> C189) / C189) * .2) + (((C - C252) / C252) * .2))*100

I believe the calculation would be:

((((C - C63) / C63) * .4) + (((C63 - C126) / C126) * .2) + (((C126 - C189) / C189) * .2) + (((C189 - C252) / C252) * .2))*100

...but all that will give you is an weighted quarterly ROC with the most recent quarter double-weighted.

> Now my question is, can anyone adapt this indicator code for use in
> AmiBroker, so I can have an IBD Relative Strength Line in my AB charts
> as well?

The calculation above would only compute the weighted ROC for a single stock.  In order to create the IBD relative strength line, you now need to rank the weighted ROC of that stock against the weighted ROC of all other stocks, then group the rankings from 1 to 99.

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