[gradsusr] Difficulties with nested if loop in grads

[Dipak Sahu]

Thanks Jennifer
     Thanks for ur suggestion. Now it is working and solve the issue.

Dipak Sahu

On Tue, Nov 6, 2012 at 7:21 PM, Jennifer Adams <jma at cola.iges.org> wrote:

>
> On Nov 6, 2012, at 7:58 AM, Dipak Sahu wrote:
>
> Dear Friends
>      I am facing some problem with *nested if *loop in grads. I want to
> write different calculations for different logical expressions in grads
> using *"if...else"* loop. My problems are like below
>
> 'open file.ctl'
> prompt 'Enter time t1:'
> pull t1
> 'set t ' t1
> if ( t1 <=13)
>     'd expression'
> endif
> if (13 < t1 <=25)
>
> This line and others like it should be:
>   if (13 < t1 & t1 <= 25)
> See if that fixes things.
> --Jennifer
>
>      'd expression1'
> endif
> if (25 < t1 <=37)
>   'd  expression2'
> endif
> if (37 < t1 <=49)
>   'd  expression3'
> endif
> if (49 < t1 <=61)
>    'd  expression4'
> endif
>
> But the above format of if...endif loop is not working properly. Is there
> any other way to write such expressions in GrADS. Please if anybody has any
> suggestions or solutions to resolve this issue kindly share with me.
>
> Thanks and welcome for your suggestions
>
> Dipak Sahu
> Centre for Atmospheric Sciences
> IIT Delhi, India
>
>
>
> -
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>
>  --
> Jennifer M. Adams
> IGES/COLA
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705
> jma at cola.iges.org
>
>
>
>
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