[gradsusr] Seasonal time series

[Muhammad Yunus Ahmad Mazuki]

Use the average function for June, July and August, Then average the 3. If
you meant to represent JJA as one point.

t6=ave(var1,time=jun1951,time=jun2050,12)
or
t6=ave(var1,t=6,t=460,12)
the same with t7 and t8
t678=(t6+t7+t8)/3
there you have t678.

On Fri, Mar 22, 2013 at 10:13 AM, leonardo <leoclarke at yahoo.com> wrote:

> Dear GRADS Users
>
> I have an area average monthly time series and would like to create a
> seasonal time series. Example create a time series of JJA averages for all
> the years.
>
> Is there a simple way that this can be done?
>
> Regards
> LC
>
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