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Re: creating a longterm average


I'll suggest that you make the long term average variable only once with
Ferret and then serve it up as another variable.  The virtual variable
concept would certainly apply here but it seems like you'll be
unnecessarily repeating the calculation of this important variable for
every request that involves it.

-- Jon

linton.corbet@csiro.au wrote:

> Hi!
> I am wondering what is the easiest way to create a long term
> average (of say, sst from 1970-1980), and then be able to compare
> it to another longterm average?
> Is usually done by creating a virtual variable?
> Any help/suggestions greatly appreciated.
> Cheers
> L. Corbet
> (P.S. using LAS version 6.0)

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