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Don't apologize but you're not bursting my bubble, yet! ( but I'm open to
having it deflated).
I've heard this knock off before and let's put it to bed if we can.
Did you try zooming the chart? Both x and y? Surely the slope of the
plotted line
changes as you move both the x, abscissa and the ordinate, price, but the
calculated
values of the slope from using linregslope does not. I think of the slope
as representative of the rate of change of
that price (or other) array. I don't know what Eckhardt said or in what
context he said it. Maybe
he was talking about using pencil and paper. There the scaling on the chart
would make a difference.
Also, you have to ask yourself, why would Tomasz have coded a linregslope
function, or Dimitris Tsokakis and others
used it so frequently in their work on the forum? In my collection alone of
valued AFL clips I get 200 hits by many different
users of this board.
Best regards
JOE
----- Original Message -----
From: "sebastiandanconia" <sebastiandanconia@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Thursday, August 24, 2006 9:31 AM
Subject: [amibroker] Re: Never Took Trigonometry
>I apologize for bursting your bubble, but angles are not going to be a
> consistent measure. If the scale of the chart changes so does the
> angle, even if the price data and timeframe are precisely the same.
>
> Trendlines that connect highs/lows, however, are consistent regardless
> of scale. In "The New Market Wizards" mathmatician William Eckhardt
> explains why methods based on angles are fallacious, but methods based
> on trendlines are more legitimate.
>
>
> Luck,
>
> Sebastian
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Charles J. Dudek" <trader@xxx> wrote:
>>
>> I don't know how to convert a slope value (LinRegSlope) to an angle.
>> I took a line from the Woodie's CCI script and converted it, but I
>> don't think it's right.
>>
>> PI = atan(1.00) * 4;
>> angle = round(180 * acos(1/LinRegSlope(C,sp)) / PI);
>>
>> Chuck Dudek
>>
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