Shading more than one variable in a plot

[Alessandro Mandelli]

Dan Leins ha scritto:
> All,
>
> I would like to create an image using GrADS of 3 separate model fields,

I have the same question and the same problem.
The only solution I could come up with is

d snow + rain*100 + freezingrain*10000

and associate three colors to 1, 100 and 10000 but I'm not really happy
with that.

Cheers