How to draw a line with an arrow in GrADS

[Dave Allured]

Haibin Li wrote:
> Dear All,
> Is it possible to draw a line with an arrow at the end in GrADS?  Thanks

This is on the Grads website, within the documentation for "set arrlab".

   http://grads.iges.org/grads/gadoc/gradcomdsetarrlab.html

Look at the example for drawing the non-default arrow.  The function can
be used to draw one or more arrows on any type of plot.

--Dave