[ncl-talk] NCL function eofunc_n
Sri nandini
bax8609 at uni-hamburg.de
Fri May 22 01:30:58 MDT 2020
Hello ncl-users,
I had a question on the ncl function eofunc_n at
https://www.ncl.ucar.edu/Document/Functions/Built-in/eofunc_n.shtml
The corresponding EOF map from e.g 3 (below) computes EOF based on 4
dimensional variable, calculated on the last 3 dimensions.
Is there a way to calculate EOF on the first 2 dimensions e.g. ev =
eofunc_n(z*(/0,1/)*,neval,False,0) ?
I wish to compute EOFs based on the time and ensemble dimension ==>e.g.
TS=[*time,ens*, lat,lon]
*Example 3*
Let z be four-dimensional with dimensions time, lev, lat, lon:
neval = 3 ; calculate 3 EOFs out of klev*nlat*mlon
ev =*eofunc_n*(z,neval,False,0)
; ev will be dimensioned neval, level, lat, lon
; Use*eofunc_n_Wrap* <https://www.ncl.ucar.edu/Document/Functions/Contributed/eofunc_n_Wrap.shtml> if metadata retention is desired
; ev =*eofunc_n_Wrap* <https://www.ncl.ucar.edu/Document/Functions/Contributed/eofunc_n_Wrap.shtml>(z,neval,False,0)
Best
Sri
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