[gradsusr] writing some defined variables in ASCII file

[hachelaf rabah]

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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