Re: [ferret_users] first couple of eofs only using eof_space, eof_tfunc

[Fabian Lienert <cccma-student-003@xxxxxxxx>]

Fabian Lienert wrote:
> Hi Ferreters,
>
> Is it possible to calculate only the first couple of EOFs using
> the functions eof_space and eof_tfunc?
>
> Or is it necessary to know all EOFs in order to judge which one is of 
> first importance?
>
> I get an error in efcn_compute() while allocating 570MB of memory while
> analyzing 3960 months of SSTs in the northern Pacific.

I understand now, that one needs to calculate all EOFs.
I have 3960 months of a 134 by 89 points domain of data.
The max amount of memory of the covariance matrix should be
134*89*(32 bit), 48MB, right?

But Ferret's eof_space function wants all the 3-dim data from the start.
Is the source code of the eof functions available? I could have a crack
at it.
Ferret v6.05 is installed on a debian stable system with 1.5 GB of RAM 
and 1 GB of swap space. Memory size was set up to 550 words.

Thank you.
Fabian
--
Fabian Lienert
PhD Student
Canadian Centre for Climate Modelling and Analysis
Meteorological Service of Canada
School of Earth and Ocean Sciences
University of Victoria
P.O. Box 1700
Victoria, BC  V8W 2Y2
CANADA

phone:  +1(250)363-8242
e-mail: cccma-student-003@xxxxxxxx