XY graph and Cursor help. LabVIEW

Having trouble displaying my intended function, Log(X) for X = 1 to 11 on my XY graph. No function appears. I've added a curser to the X-Y Graph, but I'd like to find the “Median Value” (midpoint of the data set) using the curser then calculate the Median using the array data (Log(x)) and verify that the curser and calculated value match. 

Here is my VI for troubleshooting.