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[ferret_users] filters
Dear ferret users,
I am using ferret function LANCZOS (filter), band-pass filter for
analysising a time series data (trition buoy data) for identifying 6-30
days and 30-90 day intraseasonal oscillation. The data is daily and I have
360 days of the data
I am not able to understand how ferret is selecting the weights.
May I request for some needy help!!!
How to select correct weights in using the filter.
Ex :!for 30-90days
plot lanczos(az,0.0111,0.033,91) or plot/over lanczos(az,0.0111,0.033,61)
shows lot of difference.
I have some confusion in understanding the funtion application.
with regards,
kalyani
--
________________________________________________________________________
Dr. C.Kalyani Devasena Phone : +91 80 25051904, 25051905.
Project Scientist Fax 91-80-25220392
CSIR Centre for Mathematical- E-mail: kalyani@xxxxxxxxxxxxxxx
Modelling and Computer Simulation (C-MMACS)
NAL Belur Campus,
Bangalore - 560 037,
India.
________________________________________________________________________
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