How to draw a line from the variable y-axis

Hi

I am making a 2D plot. The x-axis is located at y = 0, but I do not know the position of the y-axis, it depends on the results. Is there a way to find the x position of the y-axis? (I do not want a fixed location of the y-axis, as it should depend on the results.)

Regards

[KSSV]

YOu should have both (X,y_ in hand t plot. Or you have to plot w.r.t indices. YOur question is not clear.

[Martin Olafsen]

Ok. I'm trying to make a line from the x-axis to my chosen result point, and a line from the y-axis to the result. For a line from the x-axis I did this:

plot([resultX resultX], [0 resultY])

For a line from the y-axis I would do something of the nature to:

plot(["(y-axis location on x-axis)" resultX],[resultY resultY])

I do not know what to use for y-axis location on x-axis, as the location varies. I don't quite understand what information is missing, hopefully this clears it up.

Answer 1

[Image Analyst]

You can use xlim() and ylim() to determine the limits of the axes that MATLAB used and drew on your graph

xLimits = xlim();
yLimits = ylim();

[Martin Olafsen]

Perfect, thank you very much.