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Suppose you START 50 bars before the last bar and the END is 20 bars
ago.
For any ARRAY, the angle is
START=50;END=30;
ARRAY=RSI();
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);
ANGLE=atan((Y1-Y0)/(X1-X0));
Title="ANGLE="+WriteVal(ANGLE)+" RADS"+", ["+WriteVal(45*ANGLE/atan
(1),1.0)+" DEGS]";
Replace the ARRAY with yours and see the result in RADS [and DEGS].
Note that the calculation does not match with the visual angle, which
depends on the applied zoom and the dimensions of your graph.
Dimitris Tsokakis
--- In amibroker@xxxxxxxxxxxxxxx, "epintoem" <epintoem@xxxx> wrote:
> Given two points.... how could I calculate the slope of the line
> connecting those two points....We have an atan function but I have
no
> clue as to how to use it.
>
> Thanks for your help
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