[gradsusr] writing some defined variables in ASCII file

[Muhammad Rahiz]

Dear Rabah,

EQMVR850,EQMVR500 (& others) are objects which you've defined earlier in 
your original calculation. If you want to add the defined variables 
automatically, you can use the 'q define' and 'sublin' command.

**********
'set gxout print'

n1 = 5 # assuming you have 5 defined variables/objects
n2 = 1
while (n2 <=n1)

'q define'
var = sublin(result,n2)
'd 'var''
ret = result
res = write("output.txt",ret,append)
res = close("output.txt)

n2 = n2 + 1
endwhile
**********

What the code does is to create a while loop and select each of the 
defined variables in 'sublin(result,n2)' where n2 = 1,2,3,4,5 and print 
it to output.txt. The following illustrates what 'q define' and 'sublin' does;

'q define'
EQMVR850 = 1.58
EQMVR500 = 1.89
EQMVR700 = 1.98

sublin(result,1) # EQMVR850 = 1.58
sublin(result,2) # EQMVR500 = 1.89
sublin(result,3) # EQMVR700 = 1.98


-- 
Muhammad Rahiz
Researcher & DPhil Candidate (Climate Systems & Policy)
School of Geography & the Environment
University of Oxford

On Wed, 9 Mar 2011, hachelaf rabah wrote:

> Dear Muhamaad,
> Thank you for help , your suggestion works correctely
> could you tell me who can i add the name of parameter to write it, with the
> value like that :
> exemple :
> EQMVR850 = 1.58
> EQMVR500 = 1.89
> EQMVR700 =1.98
> .......
> .........
> 
> 2011/3/9 Muhammad Rahiz <muhammad.rahiz at ouce.ox.ac.uk>
>       Dear Rabah,
>
>       Could you try the following?
>
>       ...
>       ...
>
>       'set gxout print'
>       'd eqmVr850'
>       ret = result
>       res = write("output.txt",ret,append)
>       res = close("output.txt)
> 
>
>       --
>       Muhammad Rahiz
>       Researcher & DPhil Candidate (Climate Systems & Policy)
>       School of Geography & the Environment
>       University of Oxford
> 
> 
> On Wed, 9 Mar 2011, hachelaf rabah wrote:
>
>       Hello all GRADS users,
>
>       My problem is that i can not find a solution to write some
>       defined parameters like result of
>       summing some parameters.
>       or others statistical operations between variables.
>       i have this part of my script :
>       ......................................
>       'define VV1=mag(UGRDprs.1,VGRDprs.1)'
>       'define VV2=mag(UGRDprs.2,VGRDprs.2)'
>       'define VV3=mag(UGRDprs.3,VGRDprs.3)'
>       'define VVdif=(VV2-VV1)*(VV2-VV1)'
>       'define sumxVVdif=sum(VVdif,x=1,x=139)'
>       'define sumtVVdif=sum(sumxVVdif,y=1,y=159)'
>       'define eqmVr850=sqrt(sumtVVdif/22101)'
>       'd eqmVr850'
>       'define VVdif3=(VV3-VV1)*(VV3-VV1)'
>       'define sumxVVdif3=sum(VVdif3,x=1,x=139)'
>       'define sumtVVdif3=sum(sumxVVdif3,y=1,y=159)'
>       'define eqmVs850=sqrt(sumtVVdif3/22101)'
>       'd eqmVs850'........
>       ..........................................
>       so i need to write the result of eqmVr850 and eqmVs850
>       ....and other variables like that in a ASCII
>       file.
>       i tried that with the fprintf.gs script but it each
>       time,just the last value is wrote because this
>       script erase preceding values wrote in the ASCII file.
>
>       Thank you advance for any suggestions.
> 
> 
>
>       --
>       Cordialement,
>       Best regards,
>       Rabah Hachelaf
>
>            ______  
>           (          )
>          (            )                      
>         (________)                     
>            /////////     
> 
> 
> 
> 
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> 
> 
> 
> 
> --
> Cordialement,
> Best regards,
> Rabah Hachelaf
> 
>      ______  
>     (          )
>    (            )                      
>   (________)                     
>      /////////     
> 
> 
> 
>