[gradsusr] defined variables

[Semyon Grodsky]

Jennifer,
I just open file (Reynolds and Smithh OI v2 SST),then define TEMP for the 
entire spatial field at t=1 (see below).
Thanks,
--Senya
-------------------------------------
/data/arctic1/senya/SODA224> gradsnc

Grid Analysis and Display System (GrADS) Version 1.9b4
Copyright (c) 1988-2005 by Brian Doty and IGES
Center for Ocean-Land-Atmosphere Studies (COLA)
Institute for Global Environment and Society (IGES)
GrADS comes with ABSOLUTELY NO WARRANTY
See file COPYRIGHT for more information

Config: v1.9b4 32-bit little-endian readline sdf/xdf netcdf lats printim

Issue 'q config' command for more information.

Landscape mode? (no for portrait):
GX Package Initialization: Size = 11 8.5
ga-> open sst_month.ctl
Scanning description file:  /mnt/data/senya/pacific/sst/sst_month
Data file /mnt/data/senya/pacific/sst/sst_month_v2_%y4.dat is open as file 
1
LON set to 0 360
LAT set to -89.5 89.5
LEV set to 0 0
Time values set: 1981:11:1:0 1981:11:1:0

*sst is original variable from VARS in sst_month.ctl
*temp is defined variable

ga-> temp=sst
Define memory allocation size = 260640 bytes

ga-> set lat 0
LAT set to 0.5 0.5
ga-> set lon 0
LON set to 0.5 0.5

ga-> d sst(y+0)
Result value = 26.837

ga-> d temp(y+0)
Data Request Error: Invalid grid coordinates
   World coordinates convert to non-integer grid coordinates
     Variable = temp  Dimension = 1
   Error ocurred at column 1
DISPLAY error:  Invalid expression
   Expression = temp(y+0)
ga->



On Thu, 29 Jul 2010, Jennifer Adams wrote:

> Senya --
> I cannot reproduce this error with version 1.9 or 2.0. Did you change the 
> default file or the X dimension environment between issuing your define 
> command to establish tempnew and your display request. What exactly are you 
> trying to accomplish with the expression temp(y+0) ?
> --Jennifer
>
>
> On Jul 28, 2010, at 11:43 AM, Semyon Grodsky wrote:
>
>> Dear experts,
>> suppose TEMP is a variable of an open file.
>> I define new variable
>> 
>> TEMPNEW=TEMP
>> 
>> set x 1
>> set y 1
>> set z 1
>> set t 1 last
>> 
>> the following command works OK
>> d temp(y+0)
>> 
>> but
>> 
>> d tempnew(y+0)
>> 
>> returns error
>> World coordinates convert to non-integer grid coordinates
>> Variable = tempnew Dimension = 0
>> 
>> What is wrong?
>> GRADS 1.94 on LINUX machine
>> 
>> Thanks
>> --Senya
>> 
>> -----------------------------------------------------------
>> Semyon Grodsky
>> Computer and Space Science Building (Bldg. #224), Room 2409
>> Department of Atmospheric and Oceanic Science
>> University of Maryland
>> College Park, MD 20742
>> 
>> Phone:  301-405-5330
>> Fax:    301-314-9482
>> E-mail: senya at atmos.umd.edu
>> _______________________________________________
>> gradsusr mailing list
>> gradsusr at gradsusr.org
>> http://gradsusr.org/mailman/listinfo/gradsusr
>
> --
> Jennifer M. Adams
> IGES/COLA
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705
> jma at cola.iges.org
>
>
>

-----------------------------------------------------------
Semyon Grodsky
Computer and Space Science Building (Bldg. #224), Room 2409
Department of Atmospheric and Oceanic Science
University of Maryland
College Park, MD 20742

Phone:  301-405-5330
Fax:    301-314-9482
E-mail: senya at atmos.umd.edu