hi!:
i used the fft ncl function to make a band-filter
my ncl file is written as follows:
*******************************************
cf = new((/2,92/),float)
cf(:,:) = ezfftf(raave0(i,:))
cf(:,0:9)=0
cf(:,17:91)=0
; cf(:,0:2)=0
rano_band(i,:) = ezfftb(cf,cf@xbar)
*********************************************
the length of the time series is 184 day, i want to extract 10-20 signals.
do you think my ncl file is right?
but the result is unbelievable. because rano_band is more bigger than the raave0,
i don't know why?
could you help me?
regards!
Jing Yang
yangjing@mail.iap.ac.cn
2004-04-19
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