about wavelet

hi,
I wonder why in script wavelet_2.ncl it uses
               scaleavg = dj*dt/Cdelta*dim_sum_Wrap(powernorm(time|:,{period|2.:8.}))
to caculate the average power of 2-8 yr. Why do not use
               scaleavg = dim_sum_Wrap(powernorm(time|:,{period|2.:8.}))
directly?
Thanks in advance.

JinQ

--
JinQing  LIU                 M.S.
Ocean  University  of  China
--
 

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Received on Thu Aug 30 06:41:08 2012