plaspect:

Synopsis: Set the aspect ratio of the current subplot.

Syntax: plaspect ( )
	plaspect ( aspect )

Description:

	plaspect sets the aspect ratio of the X and Y axis for the
	current subplot in the current window. The aspect ratio is the
	ratio of the y-axis length to the x-axis length.

	Calling plaspect with no arguments will reset to the default
	aspect ratio (whatever fills up the viewport).

