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I think the best solution would come from linear
regression ... along with some help from smoothing perhaps.
The concept would be that you first qualify a
setup.
Exapmle:
You want 10% drop from HHV in a particular amount
of time ... maximum number of bars. (MinBars to MaxBars)
1. Close < 0.9 *
HHV(High,Maxbars); // 10 % drop in less then
Numbars bars
2. BarsPast = HHVBars(High,Maxbars); //
Bars since HHV
3. MinBars <
BarsPast;
// Insure that a minimum number of bars since HHV
4. Draw regression line -
Plot(LinearReg(array,period) .... )
5. Evaluate slope of regression line
slope = RL -
Ref(RL,-1) / Ref(RL,-1); // Slope at any point
on the line
6. You can decide how to alternately evaluate to
slope .... max or min slope value ...etc
You may also use a smoothed price array instead of
actual prices by using price = (H+L+C+O) / 4 or (H+L) / 2 .
Hope this gets you closer to your
objective.
----- Original Message -----
Sent: Friday, September 05, 2008 11:00
AM
Subject: Re: [amibroker] How to calculate
a slope % with Rsquared without a loop?
Hi, @Joe Landry: Thanks for the tips. I'm not sure
how the K-ratio can help on this, but if it can help... @Ara: I'm sorry
if what I said was not clear. What I want to do is to calculate a %
pullback from a HHV of a stock but I want the slope to be "smooth", that is, I
am not happy to see a 5 or 10% pullback but would like to see a 5 or 10%
pullback with a particular slope inclination. That is: if the
stock dropped 10% in a day is not the same as if it quietly lost 0.5% for 20
days (would not be exactly 10%, but this is an image). You understand
what I mean? I want the slope to be as smooth as possible with a
particular inclation %. Is this
possible? Thanks, Louis
2008/9/5 Ara Kaloustian <ara1@xxxxxxxxxx>
Louis,
I am not quite sure what you mean by "a smooth
slope".
Do you want to have a plot of prices that are
smoothed ... as you would gt with a filter??
OR do you want a computed value of slope at
some particular point? ... if so at what point ... or do you want a plot of
the slope ... etc
If you can be moe specific that would be
halpful!
A
-----
Original Message -----
Sent:
Friday, September 05, 2008 8:41 AM
Subject:
Re: [amibroker] How to calculate a slope % with Rsquared without a
loop?
Hi, Linear function is my big problem. I'm so
weak using that. What is the difference between using this and doing
it the other way? BTW, how would you set the number of bars in the
current:
HHVBars(Var,period); // Find number of bars -
distance from HHV to current bar
%slope = ((Highest high - currentclose) /
Highest high) / number of bars *
100;
Thanks,
Louis
2008/9/4 Ara Kaloustian <ara1@xxxxxxxxxx>
You can also use linearray to draw a
stright line from HHV to current point.
Look up LinearReg function
-----
Original Message -----
Sent:
Thursday, September 04, 2008 10:37 AM
Subject:
Re: [amibroker] How to calculate a slope % with Rsquared without a
loop?
Try this:
HHV(Var,period); // find
value of highest high
HHVBars(Var,period); // Find number of
bars - distance from HHV to current bar
%slope = ((Highest high - currentclose) /
Highest high) / number of bars * 100;
You may choose to define slope in a
different way, but this is the basic structure
A
-----
Original Message -----
Sent:
Thursday, September 04, 2008 9:34 AM
Subject:
Re: [amibroker] How to calculate a slope % with Rsquared without a
loop?
Hi, Thanks for your response. I should
have said I want to calculate a slope from a high point; I'd like to
get a smooth slope from a HHV... How would you do
that? Thanks a lot! Louis
2008/9/4 Ara Kaloustian <ara1@xxxxxxxxxx>
%slope = (variable - Ref(Variable,-x)
) / Ref(Variable,-x) * 100;
-----
Original Message -----
Sent:
Thursday, September 04, 2008 9:20 AM
Subject:
[amibroker] How to calculate a slope % with Rsquared without a
loop?
Hi,
I was wondering how to calculate the %
of a slope without doing any loop. Anybody has any
idea?
Thanks,
Louis
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