[amibroker] how to plot a secant

["murthysuresh" <money@xxxxxxxxxxxxxx>]

hello
How can i plot a secant. I want to plot a secant that intersects 
lstvalue(adx()) and ref(adx(),-3) and determine the slope. 
GFXLINETO function takes in pixel co ordinates only. so is there a way 
to get convert the ref(adx(),-3)  into x,y co ordinates?

seede
 




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