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Thank you
Graham - I will try this.
Tom
for you ema line you ahve added
b=atan(LinRegSlope(EMA34,3)); so you
are actually calculating the lope of the
linear regression line of the
EMA line. If you want to find the slope of the
EMA line itself, use
the straightforward point1-point2 calculation. Now this
becomes ideas
only but you need to scale by the X and Y axis to the extent
of
looking at the number of bars on screen and the range of price.
I
have a plot on my screen
Plot(C,"close",colorWhite,styleLine);
scale =
(1.68-1.32)/(3805-3742); // assume full screen diagonal is 45
degree and
manually put in from looking at the screen ( Y-axis range /
X-axis
range)
// you can get these values automatically using Status
function
Plot( atan((C-Ref(C,-1))/scale)*180/3.142, "angle",
colorRed,
styleLine|styleLeftAxisScale );
this gave me a value of
angle of -41degree which is close to what it
looked like on screen
To get
the slope of the line as you see it on screen, you would need
top add in
scaling factors to overcopme the actual values you are
using
On
7/21/05, mymail <grpmail@xxxxxxxxxxxxxxxx> wrote:
>
Graham,
>
> I am trying to determine the angle of the Linereg
and Ema lines at a
> particular point in time. For instance, if you draw a
90 degree horizontal
> and vertical line and the Linereg comes through the
intersection of that 90
> degree, what angle is the linereg relative to
the 90 degree base. If I could
> include an image I could probably express
it a little better.
>
> |
> |
> |
>
|
> | /
> | / need the angle of
this.
> |/_____________________
>
> Thank you
>
Tom
>
>
>
>
>
>
> -----Original Message-----
> From:
amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx]On Behalf
> Of
Graham
> Sent: Wednesday, July 20, 2005 6:15 PM
> To:
amibroker@xxxxxxxxxxxxxxx
> Subject: Re: [amibroker] Some Math Help
Please
>
> In what way are you getting wrong numbers?
> Are
you wanting the angle of the linreg line?
>
> The results look ok
to me after plotting.
>
> You have to remember that slope is
an arbitrary number in charts. You
> must calculate it to suit the scaling
factors that affect it if you
> want to gtet the answer similar to what
you see on the screen. The
> screen drawn angle will change as you zoom
in/out of the chart and may
> possibly be the same as calculated figure if
yuo get lucky.
> I have stated this before some time ago, angle means
absolutely
> nothing by itself as you have no reference in which to base
it.
>
>
>
>
> On 7/21/05, mymail
<grpmail@xxxxxxxxxxxxxxxx> wrote:
> > 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);
> >
> >
-----Original Message-----
> > From: amibroker@xxxxxxxxxxxxxxx
[mailto:amibroker@xxxxxxxxxxxxxxx]On
> Behalf
> > Of
Graham
> > Sent: Wednesday, July 20, 2005 5:44 PM
> > To:
amibroker@xxxxxxxxxxxxxxx
> > Subject: Re: [amibroker] Some Math Help
Please
> >
> > 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
>
> >
> > >
> > >
> > >
> >
>
> > > SPONSORED LINKS
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> > > software
> > >
________________________________
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> >
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> > >
> > > To unsubscribe from
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> > >
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> > >
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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:
> > http://www.amibroker.com/support.html
>
>
> >
> >
> >
> >
________________________________
> > YAHOO! GROUPS LINKS
> >
> > Visit your group "amibroker" on the web.
>
>
> > To unsubscribe from this group, send an
email to:
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>
>
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Yahoo! Terms of Service.
> > To unsubscribe from this group,
send an email to:
> >
amibroker-unsubscribe@xxxxxxxxxxxxxxx
> >
>
> Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
> > Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service.
> > ________________________________
> >
>
>
> --
> 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:
> http://www.amibroker.com/support.html
>
>
>
>
> ________________________________
>
YAHOO! GROUPS LINKS
>
> Visit your group "amibroker" on the
web.
>
> To unsubscribe from this group, send an
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>
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use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
>
To unsubscribe from this group, send an email to:
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amibroker-unsubscribe@xxxxxxxxxxxxxxx
>
> Your
use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
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Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
>
________________________________
>
--
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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