The vertical coordinate of the mouse cursor or joystick.
With the mouse, valid values run from 0 to the number of vertical pixels, or -1 if the position is unknown. With the joystick the value runs from -1000 to 1000, with 0 representing the joystick in the center position
The following displays the value of y in a text stimulus:
<text sometext>
/ items= ("mouse y position = <% mouse.y %>")
</text>
The following displays the value of y the joystick:
<page somepage>
joystick y position = <% joystick.y %>
</page>