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Graham, RG:
I agree if you draw a trendline it will change
dramatically when you change the scale
on the chart. The following routine from
DT however provides the angle in radians and degrees
based the in this case the closing price, and does not
change no matter whether you
zoom or not to change the scale of the chart. Note
it has parameters so you
can move it around the chart to span the area you're
interested in.
What value? It could be used in scoring but
as Graham pointed out you could do the
same by using the price bars and the bar axis to calculate
the rate of change,
ROC(array,bars)
Best regards
JOE
======== Dimitris' code with a couple of additions
END= Param("End",1,1,250.1);
START= Param("start",50,10,250,1);
ARRAY=Close;
L1= LastValue(Cum(1));
X0=L1-START;X1=L1-END;
Y0=ARRAY[X0];Y1=ARRAY[X1];
Plot (ARRAY,"",1,1);
Plot (LineArray(X0,Y0,X1,Y1),"",4,1);
Plot (LineArray(X0,Y0,X1,Y0),"",4,1);
Plot (Close,"Close",colorBlue,styleThick);
ANGLE= atan(22.36/49); // atan((Y1-Y0)/(X1-X0));
Title = "ANGLE="+WriteVal(ANGLE)+" RADS"+", ["+WriteVal(45*Angle/atan(1),2.4)+" DEGS]"+ ", ["+ WriteVal(ROC(Close,49),2.2)+ "%] ROC";
----- Original Message -----
Sent: Friday, February 04, 2005 2:49
AM
Subject: Re: [amibroker] Convert
linregslope into degrees
draw a line
on the chart and thenzoom in and out and see what happens
to the slope of
the line
On Fri, 4 Feb 2005 08:57:28 +0900, Rigged Game <RiggedGame@xxxxxxxxx> wrote:
>
>
> Can you elaborate with some code examples?
>
>
RG
>
> On Thu, 3 Feb 2005 18:27:34 +0800, Graham <kavemanperth@xxxxxxxxx>
wrote:
>
> > degrees mean nothing in charting as the angle on
the screen will
> > change as you zoom in and out. Price / bar is the
only way to measure
> > slope of a line.
>
>
>
Check AmiBroker web page at:
> http://www.amibroker.com/
>
> Check group FAQ at: http://groups.yahoo.com/group/amibroker/files/groupfaq.html
>
Yahoo! Groups Links
>
>
>
>
>
--
Cheers
Graham
http://e-wire.net.au/~eb_kavan/
Check
AmiBroker web page at:
http://www.amibroker.com/
Check
group FAQ at: http://groups.yahoo.com/group/amibroker/files/groupfaq.html
Check AmiBroker web page at:
http://www.amibroker.com/
Check group FAQ at: http://groups.yahoo.com/group/amibroker/files/groupfaq.html
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