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Laziness prevails. I took the formulae from Guppy's site, they use the
Wilder's smoothy. I decided to use the Typical Price ((H+L+C)/3) rather than
the median. The results were accurate to 3 decimals for the couple that I
checked. The point was, not to duplicate his results, but to assure myself
that I understood and wasn't just missing something.
The replies from this list assure me that I'm not.
And Glen, yes, you're right about the "-x" value offsetting into the future.
Raminder
-----Original Message-----
From: owner-metastock@xxxxxxxxxxxxx [mailto:owner-metastock@xxxxxxxxxxxxx]
On Behalf Of Glen Wallace
Sent: Tuesday, February 29, 2000 9:47 AM
To: MetaStock listserver
Subject: Re: Moving Averages, Profitunity, "New Trading Dimensions"
Lionel:
By plotting today the value of the indicator from five days ago, you are
effectively shifting the indicator into the future five days. It's kind of
backwards to how we normally refer to x-axis shifts here. In any case,
I hope this make sense.
Raminder can confirm whether this gives the same results as Williams'
software.
Regards.
----- Original Message -----
From: "Lionel Issen" <lissen@xxxxxxx>
To: <metastock@xxxxxxxxxxxxx>
Sent: Monday, February 28, 2000 12:59 PM
Subject: Re: Moving Averages, Profitunity, "New Trading Dimensions"
Glen:
The original formula says to offset ahead (into the future). Though I
haven't tried this with the current version, 6.52, it wasn't feasible in
earlier versions.
If I understand your formulation correctly, you are offsetting the
parameters back not forward. Does this give the same or similar results as
Williams?
Lionel Issen
lissen@xxxxxxxxx
----- Original Message -----
From: Glen Wallace <gcwallace@xxxxxxxx>
To: MetaStock listserver <metastock@xxxxxxxxxxxxx>
Sent: Monday, February 28, 2000 11:53 AM
Subject: Re: Moving Averages, Profitunity, "New Trading Dimensions"
> Raminder:
>
> The problem is in their "smoothing." Below is the code I wrote for the
> Red Line based on an explanation they gave me about a year ago.
> I can dig up that e-mail if you wish. Also, I recall Daryl Guppy's site
> (http://www.nt-tech.com.au/guppy/gup59.htm) has all the code (written
> by our own Adam Hefner, I think) for Bill Williams' methods.
>
> Be careful with Bill Williams' system, though, it's not the holy grail he
> describes in his books.
>
> Hope this helps.
>
>
> {This code can be cleaned up using the Sum function. It was written in
> this expanded form during debugging}
> p8:= Ref((H+L)/2,-8);
> p7:= Ref((H+L)/2,-7);
> p6:= Ref((H+L)/2,-6);
> p5:= Ref((H+L)/2,-5);
> p4:= Ref((H+L)/2,-4);
> p3:= Ref((H+L)/2,-3);
> p2:= Ref((H+L)/2,-2);
> p1:= Ref((H+L)/2,-1);
> p0:= (H+L)/2;
>
> PrevSum:= p8+p7+p6+p5+p4+p3+p2+p1;
> PrevAve:= PrevSum/8;
>
> Ref((PrevSum - PrevAve + p0)/8,-5)
>
>
> ----- Original Message -----
> From: "Raminder Singh" <rs@xxxxxxxxxx>
> To: <metastock@xxxxxxxxxxxxx>
> Sent: Sunday, February 27, 2000 10:00 PM
> Subject: Moving Averages, Profitunity, "New Trading Dimensions"
>
> Bill William's in his 3rd chapter mentions the "Alligator", which he
> describes as,
>
> the Blue Line - 13 day smoothed moving average, offset 8 days into the
> future the Red Line - 8 day smoothed moving average, offset 5 days
> into the future the Green Line - 5 day smoothed moving average, offset
> 3 days into the future
>
> I downloaded the demo from www.profitunity.com. However, with the same
> stock, under MetaStock 6.5.2, I can't seem to get the same values as his
> software. I've tried, Simple, Exponential, Weighted, all the ones
> available in MetaStock. I even tried experimenting with the time periods
> values.
>
> Comes close, but not the same. I'd be highly obliged if somebody would
> shed some light on this.
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