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Graham,
I read the
thread as it went on. Unfortunately, I am doing something wrong, as I am not
getting the correct numbers.
Here is my
code snippet. Did I miss something obvious?
LSMA = LinearReg(C, 25 );
EMA34 = EMA(C,34);
a= atan(LinRegSlope(LSMA,3));
b= atan(LinRegSlope(EMA34,3));
RAD_TO_DEG = 180/3.1415926;
// radians to degrees
Angle = RAD_TO_DEG * a;
Angle1 = RAD_TO_DEG * b;
"LSMA ANGLE IS: " + WriteVal(Angle);
"EMA34 ANGLE IS: " + WriteVal(Angle1);
just had that discussion here this week re slopes
calculation
slope = (value2 - value1) / (bar2 - bar1);
angle_rad =
atan(slope);//radians
angle_deg = angle_rad * 180/3.1416;//degrees
On
7/21/05, mymail <grpmail@xxxxxxxxxxxxxxxx> wrote:
> Thank you Joe,
good advice. Unfortunately, I was trying to get Math help
> rather than
AFL help. It has been so long that I studied Trig that I forgot
> how to
calculate the angle of a line.
> So for instance, how would I calculate
the angle in degrees of a line such
> as a moving average?
>
> thank you
> Tom
>
> -----Original
Message-----
> From: amibroker@xxxxxxxxxxxxxxx
[mailto:amibroker@xxxxxxxxxxxxxxx]On Behalf
> Of Joe Landry
> Sent:
Monday, July 18, 2005 8:27 AM
> To: amibroker@xxxxxxxxxxxxxxx
>
Subject: Re: [amibroker] Some Math Help Please
>
>
>
> AN EXAMPLE:
>
> I don't know why your codes doesn't work
but building on what Graham wrote
> here's a an example (since I had to
fight through this at one time)
>
> This is a snippet from one of
my indicators is based on Dimitris's work
> ....BB is the slope of the
line at the last bar. I write it out on the
> chart
>
>
as follows
>
> Title= FullName()+" "+ Date()+"\n"+ "Slope of
Regression Line(X1000) = "+
> WriteVal(10000*bb);
>
>
If you're new to this script, I'd recommend you take up one of the
most
> productive practices I've found and
>
> adapt for your
work. Find an information database(I use Infoselect) for
>
your system and clip every interesting indicator or algorithm you
>
> see used in this forum for your own library. This of course would
be in
> addition to what Graham recommended 2-3 weeks back...going through
each
> function and using the function in a test program .
>
> Searching the archives 2-3 years back for Graham's and Dimitris
Tsokakis'
> work would also pay off.
>
> Best
regards
>
> JOE
>
>
>
>
>
> // Plot the slope of the relative strength line
>
> //
>
> Daysback = 126; // 6 months
>
> x =
Cum(1); // the X axis, abscissa
>
> LastX = LastValue(X);
>
> C1 = Issue2Rel; // the Y axis, the ordinate
>
> aa =
LastValue( LinRegIntercept( C1, Daysback) );
>
> bb = LastValue(
LinRegSlope( C1, Daysback ) );
>
> yy = Aa + bb * ( x - (Lastx -
DaysBack) ); // the algebraic equation for a
> straight line
>
> yy=IIf( x >= (lastx - Daysback), yy, -1e10 ); // roll the plot
forward and
> show only the 6 months
>
> Plot( yy,
"LinRegression Line", colorDarkRed,styleThick);
>
> UpperSEBand =
YY + 2*StdErr(Issue2Rel,126);
>
> LowerSEBand = YY -
2*StdErr(Issue2Rel,126);
>
> Plot(UpperSEBand,"Upper 2
Sigma",colorBlue,styleLine);
>
> Plot(LowerSEband,"Lower 2
Sigma",colorBlue,styleLine);
> ----- Original Message -----
>
From: valrox1
> To: amibroker@xxxxxxxxxxxxxxx
> Sent: Monday, July
18, 2005 12:36 AM
> Subject: [amibroker] Some Math Help Please
>
> I am trying to calculate the angle of a plotted slope in degrees.
> Below is the code I thought would work, but doesn't.
>
>
Any thoughts?
>
> Thank you
> Tom
>
> LSMA =
LinearReg(C, 25 );
>
> a=atan(LSMA);
>
> RAD_TO_DEG =
180/3.1415926; // radians to degrees
>
> Angle = RAD_TO_DEG * a; //
>
> Plot( Angle, "LSMA", colorYellow, styleThick);
>
>
> Title = "Angle=" + Angle +
EncodeColor(colorWhite) + " " + Date
> ();
>
>
>
>
>
>
> Please note that this group is for
discussion between users only.
>
> To get support from AmiBroker
please send an e-mail directly to
> SUPPORT {at} amibroker.com
>
> For other support material please check also:
> http://www.amibroker.com/support.html
>
>
>
>
>
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________________________________
>
--
Cheers
Graham
http://e-wire.net.au/~eb_kavan/
Please note that this group is for discussion between users only.
To get support from AmiBroker please send an e-mail directly to
SUPPORT {at} amibroker.com
For other support material please check also:
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