Widget:

• From the Window/Slicer Widget, click on the box next to the Y coordinate until it displays the word "Fixed". Then, using the slider bar provided, select the Y location you desire. Or click until the word "Average" and set the range of the average. Or click until the word "Free". (For a diagram of the Window/Slicer Widget, see Producing a 2D Scalar Plot, Producing a 1D Scalar Plot, or Producing a Vector Plot).

• YLOCATION=value

• value: one of the following:
  • a number: this fixes the Y coordinate to that value and reduces the number of coordinates that will be allowed to vary in your plot.
  • "average": an average in Y will be plotted. The range of the average is the window value in Y (see WINDOW).
  • "free" the Y coordinate is no longer locked to one value or an average, increasing the number of coordinates that will be allowed to vary in your plot.

• YLOCATION=300
• YLOCATION=average
• YLOCATION=free