Re: FFTA encountered missing data a ...

[antonio rodriguez <arv@xxxxxxx>]

Hi Ansley,

Ansley Manke wrote:

> Hi Antonio,
> The FFT functions work on  time series having no missing
> data. The error message indicates that the first time step of the
> data you're sending to the function has missing data.  You might
> try listing the first few times of  variable_mean[l=1:428] to
> see what's happening, or look at what is in the variable with
> the command
>
> yes? STAT variable_mean[l=1:428]


You are rigth I have 1 value flagged as bad data at this location: 
(i,j,k,l) -111 -111 -111    1

How do I can overcome this problem? Maybe replacing the bad value with 
the mean? but how?

Thanks in advance

Cheers,

Antonio


> Ansley Manke
>
> arv@ono.com wrote:
>
>
> > Hi,
> >
> > I've tried to perform the following FFTA analysis but I get this
> > result.Don't know where is my mistake
> >
> > Thanks in advance.
> >
> > Antonio Rodriguez
> >
> > use wind.nc
> > DEF AXIS/T=16-JAN-1967:17-AUG-2002:1/UNITS=months regt
> > *** NOTE: /UNIT=MONTHS is ambiguous ... using 1/12 of 365.2425 days
> > DEF AXIS/X=10W:6W:1 x10
> > DEF AXIS/y=34n:38n:1 y10
> > DEFINE GRID/x=x10/y=y10 g10x10
> > SET GRID g10x10
> > LET regular_variable = UV_MAG_MEAN[GT=regt]
> > LET variable_mean = regular_variable[x=10w:6w@ave,y=34n:38n@ave]
> > LET FFT_variable = FFTA(variable_mean[l=1:428])
> > PLOT FFT_variable
> > *** NOTE: CYC/MONTHS                               is ambiguous ...
> > using 1/12 of 365 days.
> >
> > Bailing out of external function "ffta":
> >        FFTA encountered missing data at (i,j,k,l) -111 -111 -111    1
> > **ERROR: : error in external function
> --
> Ansley Manke  Pacific Marine Environmental Laboratory  Seattle WA  (206)526-6246