It is beginner Labview user.I want to determine an x value by entering the correspondent y value in an xy graph but unfortunately i havent achived yet. i hope one can help here, thanks.
The cursor will show you the values associated with a point on a graph. Pop up on the plot area of the graph and check Visible Items >> Cursor Legend. Use the help files to get more information.
If you want to get the data programmatically you can use the threshold array function.