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dear ferret users,

I have a doubt regarding low pass filter and running mean.

my data is like this

     currently SET data sets:
    1> ./u_10.1996.nc  (default)
 name     title                                                                I              J         K         L
 U_10_MOD U_10_MOD1[GT=TIME@ASN]           1:360     1:177     ...       1:366

1) I want to 30 days low pass filter on above data and save that output data. i tried this way
let u10 = U_10_MOD[I=1:360,J=1:177,L=1:366]
let LP_u10 = LSL_LOWPASS(u10,30,366)
save/file=lowpass_u_10.nc  LP_u10

!!!!!!!!!!but this is not working !!!!!!!!!!!!!!

2) i want to have 31 days running mean in above data
 let rm_u10= u10[l=@spz:31]
!!!!!!!!normally plotting 31 days running mean we use plot/x=60/y=-20 u10[l=@spz:31]
save/file=runningmean_u10.nc  rm_u10
!!!! but if i want to save 31 days running mean how i will do it
!!!!!!!!!what is the difference in 2 and 1 in ferret!!!!
kindly help  me in this regards, may be i am wrong in thinking,
Thanks in advance for all suggestion

with regards

Theoretical Studies Division
IITM, Pune-8

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