Re: missing values

Dear NCL users,

Sorry about my previous question, it was incomplete!!!!
My precipitation data has as missing value -999.9.
The problem mentioned in the previous e-mail occurs when there are
missing data.
So, when I change the _FillValue value, all the -999.9 are changed to
the new _FillValue value.
Because this that my counting isn't right!
Is there a way to change _FillValue without change the data?

Thanks
Mateus

Mateus da Silva Teixeira escreveu:
> Dear NCL users,
>
> I have a 3D array dimensioned (year | 1960:2004, month | 1:12, day |
> 1:31) in which I put precipitation data - I should do it because my
> data source.
> Because the array dimensionality, some fake days do appear, like Feb
> 30 and April 31, for example.
> So, in order to eliminate these fake days I substitute the data
> _FillValue for another, like -1.0.
> When I print the array for one year, the fake days appear correctly
> marked with -1.0. I show to you the right end of the first year of
> this array:
>
> 0.00 0.00 0.00 13.40 0.00 3.80 21.00 <-
> JANUARY
> 0.00 0.00 0.00 32.00 -1.00 -1.00 -1.00
> 7.20 4.40 3.40 7.00 0.00 0.00 0.00
> 0.00 0.00 19.20 0.00 0.00 0.00 -1.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 8.40 0.00 7.20 0.00 -1.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 30.40 0.00 0.00 0.00 0.00 0.00 -1.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00 -1.00
> 11.00 15.00 4.00 0.00 0.00 0.00 0.00 <-
> DECEMBER
>
> To eliminate these days, I transform these array to an 1D array and
> find the indexes of the fake days, like below
>
> seriePluv = ndtooned(selPeriodo(0,:,:)) ; selPeriodo
> is the 3D array, getting only the first year (the data showed above).
> seriePluv@_FillValue = fakeDays_value ; fakeDays_value =
> -1.0
> print(num(ismissing(seriePluv))) ;
> verifying the number of the fake days of the first year => should be 7
>
>
> However, the result is completely strange: it returns 68 fake days for
> this first year.
> Am I doing something wrong?
> I already try another values to mark the fake days, but nothing changed!
>
> Thanks
> Mateus
>
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Received on Wed Mar 28 2007 - 16:08:46 MDT