set defval

[Dave Allured]

Semyon,

Set defval and q defval are strange like that.  They are supposed to be
used only on defined (in-memory) variables with only two dimensions.
This is documented, sort of, if you read closely:

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

I think of them as incompletely implemented functions, since I have also
desired to change spot information in 3D arrays.

--Dave

Semyon Grodsky wrote on March :
> Dear experts:
>
> I have a variable, VAR, defined over 2-D area (50x50), time varies from
> t=1 to t=100.
>
> For some reason I need to replace value of VAR at grid point i=20, j=20,
> t=50
>
> to do that I try
>
> set t 50
> set defval VAR 20 20 new_value
>
> I was suprised to find that VAR is changed at x=20, y=20, t=1 instead of
> t=50 (as common wisdom suggests).
>
> What is wrong?
>
> Any comments would be greatly appreciated.
>
> --SEnya
>
> --------------------------------------------------------
> Semyon Grodsky
> 224 Computer and Space Science Building, Room 2409
> Department of Meteorology
> University of Maryland
> College Park, MD 20742
>
> Phone:  301-405-5330
> Fax:    301-314-9482
> E-mail: senya at atmos.umd.edu