[gradsusr] Fw: computing anomaly

[James T. Potemra]

I think you need to specify the variable first, then seasonal; i.e.,
'modify preclim seasonal'

Jim
On 12/17/12 6:55 PM, ugo okoro wrote:
> hello all,
> while trying to compute anomaly from climatological mean, i used the 
> following;
> 'open file'
> 'set time jan79 dec79'
> 'define preclim=ave(pre,t+0,time=dec2011,12)'
> 'modify seasonal preclim'
>
> and it says the defined grid seasonal not found.
>
> so what do i do?
>
> ugo okoro.
>
>
>
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