[gradsusr] doubt in cat command in grads

[lbyerle at yahoo.com]

Dipak,
Do you know the format of the binary files that you are CAT'ing, direct access or sequential?


Lee

On Nov 26, 2011, at 6:37 AM, dipak sahu <dipakmath at gmail.com> wrote:

> Dear grads user
>        I have some doubt in cat command in grads. I have two sets of ctl and dat  files in grads one is RAINC.ctl, RAINC.dat and another one is RAINNC.ctl, RAINNC.dat. And I tried to make these two .ctl file to one .ctl file. so I tried the following command to creat one .dat file
> $ cat RAINC.dat RAINNC.dat > RAIN.dat
> and also make one .ctl file RAIN.ctl containing both the parameters RAINC (1st variable)and RAINNC (2nd variable)
> 
> for verification I tried two cases in grads
> case-1
> open RAIN.ctl
> set t 9
> d rainc+rainnc (it gives value 0 90)
> 
> case-2
> open RAINC.ctl
> open RAINNC.ctl
> set t 9
> d rainc.1+rainnc.2 (it gives value 0 35)
> 
> So, is there anything wrong with the cat command in grads. If so what is the alternate procedure to combine two .ctl and .dat files to make one file?
> 
> welcome for your suggestion
> dipak
> 
> -- 
> ********************************************
> Dipak kumar Sahu,
> Research Scholar,
> Centre for Atmospheric Sciences.,
> Indian Institute of Technology,Delhi
> email:- dipak_math at yahoo.com
> **********************************************
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