How to set the current axes region as square?

[C. Shaji]

Dear All,
I would like to know the command to set the axes region as square.

I want GrADS to adjust the x-axis, y-axis so that they have equal lengths
and adjusts the increments between data units accordingly. Or otherwise to
get the aspect ratio as 1. Right now I get a plot with aspect ratio (yaxis
length/x axis lenghth) greater than 1.

If someone know this, please help me.

Thanks in advance,

C. Shaji.