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--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@xxx> wrote:
>
> If you want to see correspondence between what you see ON SCREEN -
i.e. the "visual angle" (which is NOT constant)
> you need to perform FACTOR calculations based on
> a) PIXEL dimensions of chart window
> b) number of bars currently displayed
> c) Ymin/max range of Y axis
>
> PixelFactor = Status("pxheight")/Status("pxwidth");
> XYFactor =
(Status("axismaxy")-Status("axisminy"))/(Status("lastvisiblebarindex")-Status("firstvisiblebarindex"));
>
> FACTOR = PixelFactor / XYFactor;
>
> ANGLE=atan(FACTOR*(Y1-Y0)/(X1-X0));
>
Hi Tomasz,
I am trying to use the slope of a regression line to indicate strength
of trend. As you point out, when the chart gets rescaled, the slope
changes so I cannot trust my eye to gauge the slope.
The solution I came up with is similar to what you posted here. I
tried to divide the regression line slope by what you call the
XYFactor to come up with a reference number that won't change when the
chart is rescaled.
I can't get past calculating your XYFactor because Status("axismaxy")
and Status("axisminy") return zero for the price chart, apparently
they only work correctly in indicator windows.
Is there a solution to this problem?
Bill
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